CBSE Class 7

Environment Class 7 Geography Chapter 1 Extra Questions and Answers Social Science CBSE Pdf free download are part of Extra Questions for Class 7 Social Science. Here we have given NCERT Extra Questions for Class 7 Social Science SST Geography Chapter 1 Environment.

You can also practice NCERT Solutions for Class 7 Geography Chapter 1 Questions and Answers on LearnInsta.com.

Class 7 Geography Chapter 1 Extra Questions and Answers Environment

Environment Class 7 Extra Questions and Answer Geography Chapter 1 Very Short Answers Type

Question 1.
What is natural environment comprised of?
Answer:
The natural environment comprises of land, water, air, plants and animals.

Question 2.
What is Hydrosphere?
Answer:
Hydrosphere is domain of water. It comprises various sources of water such as rivers, lakes, seas, oceans, etc. It is essential for all living organisms.

Question 3.
What holds the gravitational force of earth.
Answer:
The atmosphere holds the gravitational force of earth.

Question 4.
When is the World’s Environment Day celebrated?
Answer:
The World’s Environment Day is celebrated on 5 June every year.

Question 5.
How is atmosphere useful for us?
Answer:
The atmospheric layer is very useful for us. It protects us from the harmful sun rays called ultraviolet rays and scorching heat of the sun.

Question 6.
What is an ecosystem?
Answer:
Ecosystem is a system formed by the interaction of all living organisms with each other and with the physical and chemical factors of the environment in which they live, all linked by transfer of energy and material.

Question 7.
What is meant by environment?
Answer:
The place, people, things and nature that surround any living organism is called environment.

Question 8.
How is environment made?
Answer:
It is a combination of natural and human made phenomena.

Question 9.
What is natural environment?
Answer:
Land, water, air, plants and animals comprise the natural environment.

Question 10.
What is lithosphere?
Answer:
Lithosphere is the solid crust or the hard top layer of the earth.

Question 11.
How is lithosphere made up of?
Answer:
It is made up of rocks and minerals and covered by a thin layer of soil.

Question 12.
Where are landforms found?
Answer:
Landforms are found over the continents and also on the ocean floor.

Question 13.
Name the domain that provides us forests, grasslands for grazing, land for agriculture and human settlements.
Answer:
Lithosphere.

Question 14.
Define biosphere.
Answer:
Plants and animal kingdom together make biosphere or the living world. It is a narrow zone of the earth where land, water and air interact with each other to support life.

Question 15.
What forms an ecosystem?
Answer:
The relation between the living organisms, as well as the relation between the organisms and their surroundings form an ecosystem.

Question 16.
What comes under the natural component of environment?
Answer:
Land (lithosphere), air (atmosphere), water (hydrosphere) and living things (biosphere).

Question 17.
What comes under the human made component of environment?
Answer:
Buildings, parks, bridges, roads, industries and monuments.

Question 18.
What comes under human component of environment?
Answer:
Individual, family, community, religion, educational, economic and political situation.

Question 19.
Why is environment changing?
Answer:
Environment is changing because of our needs. They are increasing day by day; we are therefore modifying and at times even destroying our natural surroundings.

Question 20.
What is hydrosphere?
Answer:
The domain of water is referred to as hydrosphere.

Question 21.
What is atmosphere?
Answer:
Thin layer of air that surrounds the earth.

Question 22.
What holds the atmosphere around earth?
Answer:
The gravitational force of the earth holds the atmosphere around it.

Question 23.
What causes changes in the weather and climate?
Answer:
The changes in the atmosphere produce changes in the weather and climate.

Question 24.
What makes biosphere?
Answer:
Plants and animal kingdom together make biosphere.

Question 25.
What is barter system?
Answer:
It is a trade in which goods are exchange without the use of money.

Question 26.
What enables the large scale production?
Answer:
Industrial revolution enabled large scale production.

Question 27.
What made communication easier and speedy across the world?
Answer:
Information revolution made communication easier and speedy across the world.

Question 28.
How does human being use the environment?
Answer:
Human beings use environment to fulfil their needs. The needs of human are increasing day by day. They are dependent on environment. They fulfilled their needs/requirements from the nature around them.

Question 29.
Who invited Ravi to visit his/her hometown in Mizoram during the upcoming summer vacation?
Answer:
Nurie, a girl from Ravi’s class.

Question 30.
What is biotic?
Answer:
The world of living organisms e.g. plants and animals are called biotic.

Question 31.
What is abiotic?
Answer:
The world of non-living elements, e.g. land.

Question 32.
What are components of environment?
Answer:
There are three components of environment-natural, human-made and human.

Question 33.
Name one thing that comes under natural component of environment.
Answer:
Air (atmosphere).

Question 34.
Name one thing that comes under human-made component of environment.
Answer:
Industries.

Question 35.
Name two things that comes under human component of environment.
Answer:
Religion and economy.

Question 36.
What is a source of mineral wealth?
Answer:
Lithosphere.

Environment Class 7 Extra Questions and Answer Geography Chapter 1 Short Answers Type

Question 1.
What is gravitational force?
Answer:
The gravitational force holds the atmosphere around the earth. It protects us from the harmful rays and scorching heat of the sun. It consist of a number of gases, dust and water vapour.

Question 2.
What do you understand by the term ‘Lithosphere*? Describe in brief.
Answer:
Lithosphere is the solid crust or the hard top layer of the earth. It is made up of rocks and minerals and covered by a thin layer of soil. Lithosphere is an irregular surface with various landforms such as mountains, plateaus, plains, valleys, etc. Lithosphere is the domain that provides us forests, grasslands, agricultural land and human settlements. It is also a source of mineral wealth.

Question 3.
What do you mean by the atmosphere? Describe in brief.
Answer:
The atmosphere is the thin layer of air that surrounds the earth. The gravitational force of the earth holds the atmosphere around it. It protects us from the harmful rays and scorching heat of the sun. It consists of a number of gases, dust and water vapour. The changes in the atmosphere produce changes in the weather and climate.

Question 4.
What do you understand about Barter System?
Answer:
It is a trade in which goods are exchanged without the use of money. In this system, the goods are exchanged with the goods or you can say that goods are exchanged between the two needy people.

Question 5.
Why was the environment quite well during the early period?
Answer:
There were very limited needs of early men. There were no industries, transport or other means which could produce harmful gases. The early man did not have the use of chemical products such as pesticides and fertilizers etc. The quantum of garbage was very limited. All these things affect the environment and thus in the early period our environment was quite well.

Question 6.
Describe the various causes which affect our environment.
Answer:
Human activities on earth affect whole environment. The causes which affect our environment can be listed as follows:
(i) Industries and means of transports which release smoke;
(ii) Use of fertilizers and pesticides;
(iii) Un-cleaned surrounding;
(iv) Polluted water and air;
(v) Unsettled domestic as well as electronic garbage etc.

Question 7.
What do you understand about hydrosphere?
Answer:
The domain of water is referred to as hydrosphere. It comprises various sources of water and different type of water bodies like rivers, lakes, seas, oceans, etc., which are essential for all living organisms.

Environment Class 7 Extra Questions and Answer Geography Chapter 1 Long Answers Type

Question 1.
Describe briefly about environment.
Environment is our basic life support system. It provides the air we breathe, the water we drink, the food we eat and the land where we live. The place, people, things and nature that surround any living organism is called the environment.

It is a combination of natural and human-made phenomena. While the natural environment refers to both biotic and abiotic conditions existing on earth, human environment reveals the activities, creations and interactions among human being. There are three components of environment:- Natural, Human-made and Human.

Question 2.
Describe about Lithosphere.
Answer:
Lithosphere is the solid crust or the hard top layer of the earth. It is made up of rocks and minerals and covered by a thin layer of soil. It is an irregular surface with various landforms such as mountains, plateaus, plains, valleys, etc. Landforms are found over the continents and also on the ocean floors. Lithosphere is the domain that provides us forests, grasslands for grazing, land for agriculture and human settlements. It is also a source of mineral wealth.

Question 3.
How does human being use environment to fulfil their needs?
Answer:
Human beings interact with the environment and modify it according to their needs. Early humans adapted themselves to the natural surroundings. They led a simple life and fulfilled their requirements from the nature around them. Human learnt new ways to use and change environment as times and need grew and became more varied.

They learnt to grow crops, domesticate animals and lead a settled life. The wheel was invented, surplus food was produced, barter system emerged, trade started and commerce developed. Industrial revolution enabled large scale production. Transportation became faster. Information revolution made communication easier and speedy across the world.

Question 4.
How can the environment impact living beings?
Or
What impact does the environment can have on us?
Answer:
All the living beings are directly associated with environment. If the environment is good, the living beings will be healthy. If the environment is polluted the living beings will be ill or unhealthy. In an unhealthy environment, many types of diseases can turn up in the human beings. These diseases may be as respiratory, abdominal, eye-related and some may be as chronic. Likewise, in the plants also grow many diseases due to the unhealthy environment. And hence, the photosynthesis process in the plants becomes slow which results in restricting the growth and functioning of plants.

Picture Based Questions Class 7 Geography Chapter 1 Environment

Question 1.
Draw a sketch of component of environment.
Answer:

Question 2.
Draw a picture stating domains of the Environment.
Answer:

We have given detailed NCERT Solutions for Class 7 Sanskrit Ruchira Chapter 1 सुभाषितानि Questions and Answers come in handy for quickly completing your homework.

NCERT Solutions for Class 7 Sanskrit Ruchira Chapter 1 सुभाषितानि

Class 7 Sanskrit Chapter 1 सुभाषितानि Textbook Questions and Answers

प्रश्न: 1.
सर्वान् श्लोकान् सस्वरं गायत- (सब श्लोकों को स्वर सहित गाइए- Recite all the shlokas.)
उत्तराणि:
छात्र स्वयं स्वर सहित गाएँ।

प्रश्न: 2.
यथायोग्यं श्लोकांशान् मेलयत-(श्लोकांशों को यथायोग्य मिलाइए-Match the parts of the shlokas correctly.)

‘क’ – ‘ख’
1. धनधान्यप्रयोगेषु – नासद्भिः किञ्चिदाचरेत्।
2. विस्मयो न हि कर्त्तव्यः – त्यक्तलज्जः सुखी भवेत्।
3. सत्येन धार्यते पृथ्वी – बहुरत्ना वसुन्धरा।
4. सद्भिर्विवादं मैत्रीं च – विद्यायाः संग्रहेषु च।
5. आहारे व्यवहारे च – सत्येन तपते रविः।
उत्तराणि:
‘क’ – ‘ख’
1. धनधान्यप्रयोगेषु – विद्यायाः संग्रहेषु च।
2. विस्मयो न हि कर्त्तव्यः – बहुरत्ना वसुन्धरा।
3. सत्येन धार्यते पृथ्वी – सत्येन तपते रविः।
4. सद्भिर्विवादं मैत्रीं च – नासद्भिः किञ्चिदाचरेत्।
5. आहारे व्यवहारे च – त्यक्तलज्जः सुखी भवेत्।

प्रश्न: 3.
एकपदेन उत्तरत-(एक शब्द में उत्तर दीजिए-Answer in one word.)

(क) पृथिव्यां कति रत्नानि?
(ख) मूढैः कुत्र रत्नसंज्ञा विधीयते?
(ग) पृथिवी केन धार्यते?
(घ) कैः सङ्गतिं कुर्वीत?
(ङ) लोके वशीकृतिः का?
उत्तराणि:
(क) त्रीणि
(ख) पाषाणखण्डेषु
(ग) सत्येन
(घ) सद्भिः
(ङ) क्षमा।

प्रश्न: 4.
रेखाङ्कितपदानि अधिकृत्य प्रश्ननिर्माणं कुरुत –
(रेखांकित पदों को आधार बनाकर प्रश्न निर्माण कीजिए–Frame questions based on the underlined words.)

(क) सत्येन वाति वायुः।
(ख) सद्भिः एव सहासीत।
(ग) वसुन्धरा बहुरत्ना भवति।
(घ) विद्यायाः संग्रहेषु त्यक्तलज्जः सुखी भवेत् ।
(ङ) सद्भिः मैत्री कुर्वीत।
उत्तराणि:
(क) केन वाति वायुः?
(ख) कैः एव सहासीत?
(ग) का बहुरत्ना भवति?
(घ) कस्याः संग्रहेषु त्यक्तलज्जः सुखी भवेत् ?
(ङ) सद्भिः किं कां कुर्वीत?

प्रश्न: 5.
प्रश्नानाम् उत्तराणि लिखत-
(प्रश्नों के उत्तर लिखिए-Answer the following questions.)

(क) कुत्र विस्मयः न कर्त्तव्यः?
उत्तराणि:
दाने, तपसि, शौर्ये, विज्ञाने, विनये, नये च विस्मयः न कर्त्तव्यः ।

(ख) पृथिव्यां त्रीणि रत्नानि कानि?
उत्तराणि:
पृथिव्यां जलं, अन्नं सुभाषितम् च त्रीणि रत्नानि सन्ति ।

(ग) त्यक्तलज्जः कुत्र सुखी भवेत्?
उत्तराणि:
धन-धान्य-प्रयोगे, विद्यायाः संग्रहेषु, आहारे व्यवहारे च त्यक्तलज्जः सुखी भवेत् ।

प्रश्न: 6.
मञ्जूषातः पदानि चित्वा लिङ्गानुसारं लिखत- (मञ्जूषा से शब्दों को चुनकर लिंग के अनुसार लिखिए- Fill in the blanks by choosing suitable gender words from the box)

[ रत्नानि, वसुन्धरा, सत्येन, सुखी, अन्नम्, बह्निः, रविः, पृथ्वी, सङ्गतिम् ]

उत्तराणि:

प्रश्न: 7.
अधोलिखितपदेषु धातवः के सन्ति? (नीचे लिखे हुए शब्दों में धातुएँ कौन-कौन सी हैं? What are the roots in given words?)

पदम् – धातुः
करोति – ……………
पश्य – ……………
भवेत् – ……………
तिष्ठति – ……………
उत्तराणि:
पदम् – धातुः
करोति – कृ
पश्य – दृश्
भवेत् – भू
तिष्ठति – स्था

Class 7 Sanskrit Chapter 1 सुभाषितानि Additional Important Questions and Answers

(1) पद्यांशं पठित्वा अधोदत्तान् प्रश्नान् उत्तरत- (पद्यांश पढ़कर निम्नलिखित प्रश्नों के उत्तर दीजिए- Read the extract and answer the questions that follow.)

सत्येन धार्यते पृथ्वी सत्येन तपते रविः।
सत्येन वाति वायुश्च सर्वं सत्ये प्रतिष्ठितम्॥

I. एकपदेन उत्तरत

(i) पृथ्वी कथं धार्यते ?
उत्तराणि:
सत्येन

(ii) कः सत्येन तपते ?
उत्तराणि:
रविः

(iii) सर्वं कस्मिन् प्रतिष्ठितम् ?
उत्तराणि:
सत्ये

II. पूर्णवाक्येन उत्तरत

सत्येन किं किं भवति?
उत्तराणि:
सत्येन पृथ्वी धार्यते, सत्येन रविः तपति, सत्येन एव च वायुः वहति।

III. भाषिककार्यम्-

यथानिर्देशम् रिक्तस्थानानि पूरयत –

(i) सत्येन – अत्र का विभक्ति? – ……………….. (द्वितीया, तृतीया, सप्तमी)
उत्तराणि:
तृतीया

(ii) प्रतिष्ठितम् – अत्र कः धातुः? – ……………….. (तिष्ठ, स्था, प्रति)
उत्तराणि:
स्था

(iii) पर्यायः कः?
(क) वहति – ………………..
(ख) पवनः – ………………..
उत्तराणि:
(क) वाति
(ख) वायुः

(iv) श्लोके किम् अव्ययपदम् अस्ति?
उत्तराणि:
च

(2) शुद्धस्य कथनस्य समक्षे ‘आम्’ अशुद्धस्य च समक्षे ‘नहि’ लिखत- (शुद्ध कथन के सामने ‘आम्’ और अशुद्ध के सामने ‘नहि’ लिखिए- write आम्’opposite the correct statement and’fe’opposite the incorrect one.)

(i) पृथिव्यां त्रीणि रत्नानि इति मूढाः वदन्ति।
उत्तराणि:
नहि

(ii) क्षमा सर्वं साधयति।
उत्तराणि:
आम्

(iii) सर्वं विज्ञाने प्रतिष्ठितम्।
उत्तराणि:
नहि

(iv) सज्जनैः सह मित्रतां कुर्यात्।
उत्तराणि:
आम्

(v) सद्भिः किंचिद् न आचरेत्।
उत्तराणि:
नहि

(3) अधोदत्तान् शब्दान् परस्परं मेलयत- (निम्नलिखित शब्दों का परस्पर मेल कीजिए- Match the following.)

(क) शब्दार्थाः

‘क’ – ‘ख’
1. पृथ्वी – हस्ते
2. सद्भिः – दुर्जनैः
3. रविः – वहति
4. करे – वसुन्धरा
5. वाति – भानुः
6. लोके – सज्जनैः
7. असद्भिः – संसारे
उत्तराणि:
1. पृथ्वी-वसुन्धरा
2. सद्भिः-सज्जनैः
3. रविः-भानुः
4. करे-हस्ते
5. वाति-वहति
6. लोके-संसारे
7. असद्भिः-दुर्जनैः।

(ख) श्लोकांशा:’

‘क’ – ‘ख’
1. आहारे व्यवहारे च – (i) किं करिष्यति दुर्जनः।
2. विस्मयो न हि कर्त्तव्यो – (ii) बहुरत्ना वसुन्धरा।
3. मूरैः पाषाणखण्डेषु – (iii) त्यक्तलज्जः सुखी भवेत्।
4. शान्तिखड्गः करे यस्य – (iv) नासद्भिः किञ्चिदाचरेत्।
5. सद्भिर्विवाद मैत्री च – (v) रत्नसंज्ञा विधीयते।
उत्तराणि:
1. (iii) त्यक्तलज्जः सुखी भवेत्।
2. (ii) बहुरत्ना वसुन्धरा।
3. (v) रत्नसंज्ञा विधीयते।
4. (i) किं करिष्यति दुर्जनः।
5. (iv) नासद्भिः किञ्चिदाचरेत्।

(4) (क) मञ्जूषायाः सहायतया श्लोकस्य अन्वयं पूरयत- (मञ्जूषा की सहायता से श्लोक का अन्वय पूरा कीजिए- Complete the prose order of the shloka with help of the box.)

दाने तपसि शौर्ये च विज्ञाने विनये नये।
विस्मयो न हि कर्त्तव्यो बहुरत्ना वसुन्धरा॥
दाने तपसि ……… विज्ञाने विनये नये………….
… न हि कर्त्तव्यो …………. बहुरत्ना (अस्ति)।।
मञ्जूषा- विस्मयः, च, वसुन्धरा, शौर्ये
उत्तराणि:
शौर्ये, च विस्मयः, वसुन्धरा।

(ख) मञ्जूषायाः सहायतया श्लोकस्य भावार्थं पूरयत- (मञ्जूषा की सहायता से श्लोक का भावार्थ पूरा कीजिए- Complete the central idea of the verse with help of the box.)

‘क्षमावशीकृतिः’ लोके क्षमया किं न साध्यते।
यः जनः ………………. भवति, सर्वे जनाः तस्य ………………….भवन्ति। ……………….. एव सर्वाणि कार्याणि ………………..|
मञ्जूषा- क्षमा, वशे, क्षमाशीलः, साधयति।
उत्तराणि:
क्षमाशीलः, वशे, क्षमा, साधयति।

बहुविकल्पीयप्रश्नाः

(1) रेखाङ्कितपदम् आधृत्य उचितविकल्पेन प्रश्ननिर्माणं कुरुत। (रेखांकित पद के आधार पर उचित विकल्प द्वारा प्रश्न निर्माण कीजिए- On the basis of underlined words frame questions with the appropriate option.)

(i) पृथिव्यां त्रीणि रत्नानि। (कति, का, कानि)
उत्तराणि:
पृथिव्यां कति रत्नानि?

(ii) क्षमा वशीकृतिः लोके। (कुतः, कुत्र, का)
उत्तराणि:
क्षमा कुत्र वशीकृतिः?

(iii) विस्मयः न हि कर्त्तव्यः। (किम्, कः, का)
उत्तराणि:
कः न हि कर्त्तव्यः?

(iv) सर्वं सत्ये प्रतिष्ठितम्। (के, केन, कस्मिन्)
उत्तराणि:
सर्वं कस्मिन् प्रतिष्ठितम्?

(2) प्रदत्तेभ्यः विकल्पेभ्यः उचितं पदं चित्वा श्लोकांशान् पूरयत। (दिए गए विकल्पों से उचित पद चुनकर श्लोकांश पूरे कीजिए। Pick out the appropriate word from the options given and complete the following verses.)

(i) मूढः …………… रत्नसंज्ञा विधीयते। (धनधान्यप्रयोगेषु, पाषाणखण्डेषु, पृथिव्याम्)
उत्तराणि:
पाषाणखण्डेषु

(ii) सद्भिः कुर्वीत …………… । (सुभाषितम्, प्रतिष्ठितम्, सङ्गतिम्)
उत्तराणि:
सङ्गतिम्

(iii) …………… करे यस्य किं करिष्यति दुर्जनः। (क्षमाखड्गः, शान्तिखड्गः, क्षमावशीकृतिः)
उत्तराणि:
शान्तिखड्गः

(iv) सत्येन …………… पृथ्वी। (साध्यते, भवेत्, धार्यते)
उत्तराणि:
धार्यते

NCERT Solutions for Class 7 Social Science Geography Chapter 3 Our Changing Earth are part of NCERT Solutions for Class 7 Social Science. Here we have given NCERT Solutions for Class 7 Social Science Geography Chapter 3 Our Changing Earth.

Board	CBSE
Textbook	NCERT
Class	Class 7
Subject	Social Science Geography
Chapter	Chapter 3
Chapter Name	Our Changing Earth
Number of Questions Solved	8
Category	NCERT Solutions

NCERT Solutions for Class 7 Social Science Geography Chapter 3 Our Changing Earth

Our Changing Earth Class 7 NCERT Textbook Exercise Questions and Answers

Question 1.
Answer the following questions.
(i) Why do the plates move?
(ii) What are exogenic and endogenic forces?
(iii) What is erosion?
(iv) How are flood plains formed?
(v) What are sand dunes?
(vi) How are beaches formed?
(vii) What are ox-bow lakes?
Answer.
(i) The plates move due to endogenic forces acting in the interior of the earth.

(ii) The forces that act in the interior of the earth are called endogenic forces. The forces that act on the earth’s surface are called exogenic forces.

(iii) Erosion is the wearing away of the landscape by different agents like water, wind, and ice.

(iv) When rivers outflow their banks, they cause floods in the neighbouring areas. The floodwater takes away fine soil and other material and deposits them along the banks. This deposition leads to the formation of flood plains.

(v) Winds lift and carry sand from one place to another. When they stop blowing, sand falls and gets deposited in low hill-like structures called sand dunes.

(vi) Beaches are formed when the sea waves deposit sediments along the shores of the sea.

(vii) When a river enters the plain, it forms a large bend which is cut-off from the mainstream in due course of time. The cut-off stream takes the form of a lake called oxbow lake.

Question 2.
Tick the correct answer.
(i) Which is not an erosional feature of sea waves?
(a) Cliff
(b) Beach
(c) Sea cave
Answer.
(b) Beach.

(ii) The depositional feature of a glacier is:
(a) Flood plain
(b) Beach
(c) Moraine
Answer.
(c) Moraine.

(iii) Which is caused by the sudden movements of the earth?
(a) Volcano
(b) Folding
(c) Flood plain
Answer.
(a) Volcano.

(iv) Mushroom rocks are found in:
(a) Deserts
(b) River valleys
(c) Glaciers
Answer.
(a) Deserts.

(v) Ox-bow lakes are found in:
(a) Glaciers
(b) River valleys
(c) Deserts
Answer.
(b) River valleys.

Question 3.
Match the following.
(i) Glacier                                (a) Seashore
(ii) Meanders                          (b) Mushroom rock
(iii) Beach                                (c) River of ice
(iv) Sand dunes                       (d) Rivers
(v) Waterfall                             (e) Vibrations of earth
(vi) Earthquake                        (f) Seacliff
                                                 (g) Hard bedrock
                                                 (h) Deserts
Answer.
(i) Glacier                                 (c) River of ice
(ii) Meanders                           (d) Rivers
(iii) Beach                                (a) Seashore
(iv) Sand dunes                       (h) Deserts
(vi) Waterfall                           (g) Hard bedrock
(vi) Earthquake                        (e) Vibrations of earth.

Question 4.
Give reasons.
(i) Some rocks have a shape of a mushroom.
(ii) Flood plains are very fertile.
(iii) Sea caves are turned into stacks.
(iv) Buildings collapse due to earthquakes.
Answer.
(i) Because winds erode the lower section of the rock more than the upper part. Therefore, such rocks have a narrower base and wider top.

(ii) Flood plains are formed by the deposition of fine soil and other material called sediments on the river banks. As the soil and sediments are brought by floodwater, they are very fertile.

(iii) After the formation of sea caves when cavities become bigger only the roof of the cave remain, sea arches are formed. Further, erosion breaks the roof and only walls are left. These wall-like features are called stacks.

(iv) In an earthquake, the vibrations travel outwards from the epicenter as waves. The surface starts vibrating which leads to the shaking of structures built on the earth’s surface and thus buildings collapse.

Question 5.
Activity.
Observe the photographs given below. These are various features made by a river. Identify them and also tell whether they are erosional or depositional or landforms formed by both.

Answer.

Photograph	Nature of the Feature	Type (Erosional or depositional or Both
1	Waterfall	Erosional
2	River valley	Erosional
3	Flood plain	Depositional

Question 6.
For fun.
Solve the crossword puzzle with the help of given clues.
Across
2. Loop like the bend of a river.
4. Solid form of water.
7. Moving mass of ice.
9. Sudden descent of water in the bed of a river.
11. Natural cavity on weak rocks formed by the action of waves.

12. Embankment on a river that keeps it in its channel.
13. Large body of seawater.
14. Dry area where sand dunes are found.
15. Small hill of sand caused by the action of the wind.
16. Flat plain formed by river deposits during the time of the flood.
Down
1. Rise and fall of water caused by friction of the wind on the water surface.
3. Flow of water in a channel.
5. Steep perpendicular face of rock along a sea coast.
6. Debris of boulder and coarse material carried by a glacier.
8. Crescent-shaped lake formed by a meandering river.
10. Fine sand deposited by the action of the wind.
13. Isolated mass of rising steep rock near a coastline.
14. Alluvial tracts of land formed by the river deposits at the mouth of a river.
Answer.

ACTIVITY

Earthquake-A case study

Activity

1. Read the ‘Earthquake – A case study’ given in the form of headlines that appeared in the newspapers after the quake. Arrange the events in the right sequence of their happening.
2. Imagine if a quake suddenly shook in the middle of the school day, where do you go for safety?
Answer.

1. Sequence


2. We would go for safety

• in the open
• under the gates
• would keep pillow or cushion on our heads.

Class 7 Social Science Geography Chapter 3 Intext Questions With Their Answers

Question 1.
Find out the names of a few rivers of the world that form a delta?
Answer.
Name of some rivers (See the Map):

• Mississippi—Missouri.
• Amazon.
• Parana—Paraguay.
• The Nile.
• Zaire.
• Tigris—Euphrates.
• Ganga—Brahmaputra.
• Indus.
• Hwang Ho.
• Yangtese.
• Irrawaddy.
• Salwin.
• Murray—Darling.
  

We hope the NCERT Solutions for Class 7 Social Science Geography Chapter 3 Our Changing Earth help you. If you have any query regarding NCERT Solutions for Class 7 Social Science Geography Chapter 3 Our Changing Earth, drop a comment below and we will get back to you at the earliest.

NCERT Solutions for Class 7 Hindi Vasant Chapter 1 हम पंछी उन्मुक्त गगन के are part of NCERT Solutions for Class 7 Hindi. Here we have given NCERT Solutions for Class 7 Hindi Vasant Chapter 1 हम पंछी उन्मुक्त गगन के.

Board	CBSE
Textbook	NCERT
Class	Class 7
Subject	Hindi Vasant
Chapter	Chapter 1
Chapter Name	हम पंछी उन्मुक्त गगन के
Number of Questions Solved	9
Category	NCERT Solutions

NCERT Solutions for Class 7 Hindi Vasant Chapter 1 हम पंछी उन्मुक्त गगन के

पाठ्यपुस्तक के प्रश्न-अभ्यास

(पृष्ठ 2-3)

कविता से

प्रश्न 1.
हर तरह की सुख सुविधाएँ पाकर भी पक्षी पिंजरे में बंद क्यों नहीं रहना चाहते?
उत्तर
हर तरह की सुख-सुविधाएँ पाकर भी पक्षी पिंजरे में बंद नहीं रहना चाहते क्योंकि उन्हें बंधन पसंद नहीं। वे तो खुले आकाश में ऊँची उड़ान भरना, नदी-झरनों का बहता जल पीना, कड़वी निबौरियाँ खाना, वृक्ष की सबसे ऊँची डाली पर झूलना, अनार के दानों रूपी तारों को चुगना और क्षितिज मिलन करना ही पसंद करते हैं।

NCERT Solutions for Class 7 Hindi will help you to score more marks in your CBSE board Examination.

प्रश्न 2.
पक्षी उन्मुक्त रहकर अपनी कौन-कौन सी इच्छाएँ पूरी करना चाहते हैं?
उत्तर
पक्षी उन्मुक्त रहकर अपनी निम्न इच्छाओं को पूरा करना चाहते हैं

1. पक्षी खुले आकाश में उड़ना चाहते हैं।
2. नदी-झरनों का बहता जल पीना चाहते हैं।
3. नीम के वृक्ष की कड़वी निबौरियाँ खाना चाहते हैं।
4. पेड़ की सबसे ऊँची टहनी पर झूलना चाहते हैं।
5. आकाश में ऊँची उड़ान भरकर अनार के दानों रूपी तारों को चुगना चाहते हैं।
6. क्षितिज मिलन करना चाहते हैं।

प्रश्न 3.
भाव स्पष्ट कीजिए
या तो क्षितिज मिलन बन जाता / या तनती साँसों की डोरी।
उत्तर-
प्रस्तुत पंक्तियाँ हमारी पाठ्यपुस्तक वसंत भाग-2 की कविता ‘हम पंछी उन्मुक्त गगन के’ से ली गई है। इस कविता के रचयिता प्रसिद्ध कवि श्री शिवमंगल सिंह ‘सुमन’ हैं। इस पंक्ति में कवि पक्षी के माध्यम से कहना चाहते हैं कि पक्षी स्वतंत्र रहकर क्षितिज की सीमा तक उड़ जाने की अपनी इच्छा व्यक्त करते हैं कि उड़ते-उड़ते या तो वह तो क्षितिज की सीमा हूँढ़ ही निकालेंगे या प्राण त्याग देंगे। पक्षियों के इस कथन से उनकी उन्मुक्त उड़ान के प्रति ललक व्यक्त हुई है।

कविता से आगे

प्रश्न 1.
बहुत से लोग पक्षी पालते हैं-
(क) पक्षियों को पालना उचित है अथवा नहीं? अपने विचार लिखिए।
उत्तर
पक्षियों का पालना बिल्कुल भी उचित नहीं है क्योंकि ईश्वर ने उन्हें उड़ने के लिए पंख दिए हैं, तो इच्छाएँ भी वैसी ही दी हैं। वे हरदम स्वच्छंद रहना चाहते हैं। अपनी इच्छा से ऊँची-से-ऊँची उड़ान भरना, पेड़ों पर घोंसले बनाकर रहना, नदी-झरनों का जल पीना, फल-फूल खाना ही उनकी प्रवृत्ति है। उनके बंधन हेतु पिंजरे भले ही सोने के क्यों न हों, बढ़िया से बढ़िया खाने के पदार्थ उन्हें परोसे जाएँ, लेकिन यही सत्य है कि बंधन में रहकर मिलने वाली सुविधाओं से कठिनाइयों से भरी आज़ादी श्रेष्ठ है।

(ख) क्या आपने या आपकी जानकारी में किसी ने कभी कोई पक्षी पाला है? उसकी देखरेख किस प्रकार की जाती होगी, लिखिए।
उत्तर
हाँ! हमने एक बार तोता पाला था। मेरे पिताजी उसे मेले से खरीदकर लाए थे। पक्षी की परवरिश एक छोटे बच्चे की भाँति ही की जाती है। मेरी माँ सुबह-सुबह उसे पिंजरे समेत घर के बाहर, बगीचे में लेकर आतीं। वह बाहर का वातावरण देखकर प्रसन्न हो जाता और ज़ोर-जोर से पंख फड़फड़ाता। हम उसे नहलाते भी थे। माँ उसे बाजरा देती व कटोरी में पानी। अमरूद, अंगूर व हरी मिर्च तो वह बहुत चाव से खाता। धूप थोड़ी सी तेज होने पर वह सिकुड़कर बैठ जाता। हम उसे अंदर कमरे में ले आते। बिल्ली या कुत्ते आदि जानवरों से उसे बहुत बचाना पड़ता था। रात को उसके पिंजरे पर कोई कपड़ा डाल देते तो वह बैठे-बैठे ही सो जाता।

प्रश्न 2.
पक्षियों को पिंजरे में बंद करने से केवल उनकी आज़ादी का हनन ही नहीं होता, अपितु पर्यावरण भी प्रभावित होता है। इस विषय पर दस पंक्तियों में अपने विचार लिखिए।
उत्तर-
पक्षियों को पिंजरे में बंद करके उसकी स्वतंत्रता का हनन होता है, क्योंकि उनकी प्रवृत्ति है ‘उड़ना’। अतः प्राकृतिक संतुलन बनाए रखने में पृथ्वी के सभी जीवों की समान रूप से महत्त्वपूर्ण भूमिका है। पृथ्वी के पर्यावरण संतुलन के लिए मनुष्य एवं पशु दोनों की आवश्यकता समान रूप से है। पक्षियों को कैदी बना लेने से उनकी उड़ने की आजादी समाप्त हो जाती है। इससे पर्यावरण प्रभावित होता है। पर्यावरण को शुद्ध और प्राकृतिक बनाए रखने के लिए पक्षियों को प्रकृति के मध्य रहना आवश्यक है। वे इस प्रकार पर्यावरण को शुद्ध एवं संतुलित बनाते हैं। पर्यावरण में पक्षियों का अपना विशेष महत्त्व होता है।

अनुमान और कल्पना

प्रश्न 1.
क्या आपको लगता है कि मानव की वर्तमान जीवन-शैली और शहरीकरण से जुड़ी योजनाएँ पक्षियों के लिए घातक हैं? पक्षियों से रहित वातावरण में अनेक समस्याएँ उत्पन्न हो सकती हैं। इन समस्याओं से बचने के लिए हमें क्या करना चाहिए? उक्त विषय पर वाद-विवाद प्रतियोगिता का आयोजन कीजिए।
उत्तर-
हाँ, इसमें कोई शक नहीं है कि मानव की वर्तमान जीवन-शैली और शहरीकरण से जुड़ी योजनाएँ पक्षियों के लिए सभी दृष्टिकोण से घातक हैं। अंधाधुंध शहरीकरण के कारण पक्षी प्रकृति से समाप्त होते चले जा रहे हैं। बड़ी संख्या में पेड़ काटे जा रहे हैं जिससे पक्षियों का आश्रय समाप्त हुआ है। कल-कारखानों के खुलने से वातावरण का प्रदूषण बढ़ गया है। इस कारण पक्षियों का आसमान में उड़ना भी कठिन हो गया है क्योंकि उनका आश्रय समाप्त होने के साथ-साथ पेड़ों से प्राप्त खाद्य पदार्थ, फल-फूल आदि उन्हें नहीं मिल पाते । ऐसा होने पर उन्हें मुश्किलों का सामना करना पड़ता है। पक्षियों के पलायन से सबसे बड़ा खतरा है। अनाज़ में कमी होने का है। पर्यावरण संतुलित नहीं रहेगा इससे पर्यावरण संतुलन पर गहरा असर पड़ेगा और तब मनुष्य को अपने भविष्य की चिंता सताने लगेगी। अतः आवश्यक है कि मनुष्य जागरूक हो जाए और पक्षियों के संरक्षण के लिए अधिक से अधिक संख्या में वृक्षारोपण करें। पक्षियों के लिए जलाशयों के साथ-साथ बाग-बगीचों का भी निर्माण करवाएँ। पक्षियों को पिंजरों में बंदी बना करके नहीं रखना चाहिए।

अन्य समस्याओं के बारे में छात्र स्वयं सोचे और विचार-विमर्श करें। इसके लिए विद्यालय में वाद-विवाद प्रतियोगिता का आयोजन करें।

प्रश्न 2.
यदि आपके घर के किसी स्थान पर किसी पक्षी ने अपना आवास बनाया है और किसी कारणवश आपको अपना घर बदलना पड़ रहा है तो आप उस पक्षी के लिए किस तरह के प्रबंध करना आवश्यक समझेंगे? लिखिए।
उत्तर
यदि हमारे घर में किसी पक्षी ने अपना घोंसला बनाया हो और किसी कारणवश हमें घर बदलना पड़ रहा हो तो हम संभवतः प्रयास तो यह करेंगे कि घोंसले को छेड़ा न जाए और उस पक्षी के बाहर आने-जाने का स्थान भी खुला रहे। लेकिन यदि ऐसा न हो पाए तो हम घोंसले को सावधानीपूर्वक उठाकर घर के बाहर किसी ऊँचे स्थान पर रखेंगे जहाँ उस पक्षी की नज़र पड़ सके।

भाषा की बात

प्रश्न 1.
स्वर्ण-श्रृंखला और लाल किरण-सी में रेखांकित शब्द गुणवाचक विशेषण हैं। कविता से ढूंढकर इस प्रकार के तीन और उदाहरण लिखिए।
उत्तर

1. कनक-तीलियाँ
2. कटुक-निबौरी
3. तारक-अनार।

प्रश्न 2.
‘भूखे-प्यासे’ में द्वंद्व समास है। इन दोनों शब्दों के बीच लगे चिह्न को सामासिक चिह्न (-) कहते हैं। इस चिह्न से ‘और’ का संकेत मिलता है, जैसे-भूखे-प्यासे = भूखे और प्यासे।
• इस प्रकार के दस अन्य उदाहरण खोजकर लिखिए।
उत्तर

1. सुख-दुख      –   सुख और दुख
2. दिन-रात       –  दिन और रात ।
3. सुबह-शाम    –  सुबह और शाम
4. अन्न-जल       –  अन्न और जल
5. अपना-पराया – अपना और पराया
6. अमीर-गरीब  –   अमीर और गरीब
7. तन-मन        –     तन और मन
8. दूध-दही       –     दूध और दही
9. खट्टा-मीठा    –    खट्टा और मीठा
10. पाप-पुण्य      –    पाप और पुण्य

We hope the NCERT Solutions for Class 7 Hindi Vasant Chapter 1 हम पंछी उन्मुक्त गगन के help you. If you have any query regarding NCERT Solutions for Class 7 Hindi Vasant Chapter 1 हम पंछी उन्मुक्त गगन के, drop a comment below and we will get back to you at the earliest.