MCQ Questions for Class 6 Science Chapter 15 Air Around Us with Answers

Check the below NCERT MCQ Questions for Class 6 Science Chapter 15 Air Around Us with Answers Pdf free download. MCQ Questions for Class 6 Science with Answers were prepared based on the latest exam pattern. We have provided Air Around Us Class 6 Science MCQs Questions with Answers to help students understand the concept very well. https://mcqquestions.guru/mcq-questions-for-class-6-science-chapter-15/

You can refer to NCERT Solutions for Class 6 Science Chapter 15 Air Around Us to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Air Around Us Class 6 MCQs Questions with Answers

Choose the correct option in the following questions:

Air Around Us Class 6 MCQ Question 1.
Major part of the air is constituted by
(a) nitrogen
(b) oxygen
(c) carbon dioxide
(d) inert gases

Answer

Answer: (a) nitrogen
Explanation:
3/4th portion of air is nitrogen.


Class 6 Science Chapter 15 MCQ Question 2.
Which of the following gas helps in burning? ,
(a) Nitrogen
(b) Oxygen
(c) Carbon dioxide
(d) Carbon monoxide

Answer

Answer: (b) Oxygen
Explanation:
Oxygen does not bum but supports burning.


Air Around Us Class 6 MCQ With Answers Question 3.
Which of the following gas we use in breathing?
(a) Carbon dioxide
(b) Nitrogen
(c) Oxygen
(d) None of these

Answer

Answer: (c) Oxygen
Explanation:
We use oxygen and produce carbon dioxide.


MCQ Questions For Class 6 Science Chapter 15 Question 4.
Wind is
(a) air around us
(b) rising hot air
(c) air in motion
(d) none of these

Answer

Answer: (c) air in motion
Explanation:
Air in motion is called wind.


MCQ On Air Around Us Class 6 Question 5.
Air is present in
(a) atmosphere
(b) soil
(c) water of ponds, lakes and seas
(d) everywhere

Answer

Answer: (d) everywhere
Explanation:
Air is present everywhere.


Class 6 Air Around Us MCQ Question 6.
Air is
(a) a mixture
(b) a pure substance
(c) an element
(d) anything, that depends on the place where it is found

Answer

Answer: (a) a mixture
Explanation:
Air is a mixture of various gases, water vapours and dust particles.


Class 6 Science Ch 15 MCQ Question 7.
Envelope of air that surrounds the earth is known as
(a) biosphere
(b) atmosphere
(c) environment
(d) ecosystem

Answer

Answer: (b) atmosphere
Explanation:
Air is all around us, a thick layer of air surrounds the earth, this blanket of air is called atmosphere.


Ncert Class 6 Science Chapter 15 MCQ Question 8.
Which is not a property of air?
(a) It occupies space.
(b) It is transparent,
(c) It is a solution.
(d) It is a compound.

Answer

Answer: (d) It is a compound.
Explanation:
Air is a homogeneous solution, which occupies space and it is transparent. So air is not a compound.


Class 6 Science Air Around Us MCQ Question 9.
The ratio of nitrogen to oxygen in the air is
(a) 1:4
(b) 4:1
(c) 3:1
(d) 1:2

Answer

Answer: (b) 4:1
Explanation:
4:1 is the ratio of nitrogen to oxygen in the air.


MCQ Of Air Around Us Class 6 Question 10.
The main constituent of the air is.
(a) nitrogen
(b) oxygen
(c) carbon dioxide
(d) hydrogen

Answer

Answer: (a) nitrogen
Explanation:
Composition of air (Percentage by volume), nitrogen = 78.03, oxygen = 20.99, carbon dioxide = 0.03, noble gases = 0.95 and some water vapours, dust particles and other impurities.


Match the following items given in Column A with that in Column B:

Column A Column B
(a) Air (i) Thin layer of air surrounding our earth.
(b) Wind (ii) Released in respiration.
(c) Atmosphere (iii) Makes three fourth part of total air.
(d) Oxygen (iv) Is process of burning of food to get energy.
(e) Carbon dioxide (v) Uses wind power to rotate.
(f) Nitrogen (vi) Process of preparation of food by green plants.
(g) Respiration (vii) Allow air to move here and there.
(h) Photosynthesis (viii) Is a gaseous mixture.
(i) Windmill (ix) Supports combustion.
(j) Open areas (x) Is air in motion.
Answer

Answer:

Column A Column B
(a) Air (viii) Is a gaseous mixture.
(b) Wind (x) Is air in motion.
(c) Atmosphere (i) Thin layer of air surrounding our earth.
(d) Oxygen (ix) Supports combustion.
(e) Carbon dioxide (ii) Released in respiration.
(f) Nitrogen (iii) Makes three fourth part of total air.
(g) Respiration (iv) Is process of burning of food to get energy.
(h) Photosynthesis (vi) Process of preparation of food by green plants.
(i) Windmill (v) Uses wind power to rotate.
(j) Open areas (vii) Allow air to move here and there.

Fill in the blanks with the appropriate Words.

1. When air is in ………………. it is called wind.

Answer

Answer: motion


2. Air has no ……………. and one can see through it. It is ………………… .

Answer

Answer: colour, transparent


3. Air is really not one substance but a ……………………. .

Answer

Answer: mixture


4. Air contains ………………… particles.

Answer

Answer: dust


5. The component of air that supports burning is called …………………… .

Answer

Answer: oxygen


6. The oxygen helps in breaking down the digested food in the body to release the …………………….. .

Answer

Answer: energy


7. Our earth is surrounded by ……………………….. .

Answer

Answer: air


8. Initial drops of first rain bring a lot of …………………… along with them.

Answer

Answer: dirt


9. The aquatic animals use dissolved oxygen in water for respiration. This is possible because oxygen is ………………… in water.

Answer

Answer: soluble


10. Nitrogen of the air is used on a large scale to manufacture ………………………. .

Answer

Answer: fertilizers


11. Air is present in, atmosphere, water and ……………….. .

Answer

Answer: soil


12. The method of separating two components of a mixture which is based on the wind is …………………….. .

Answer

Answer: winnowing


13. ……………………. air is used in tyres of vehicles.

Answer

Answer: Compressed


14. …………………. is the place in nature for gaseous exchange.

Answer

Answer: Atmosphere


State whether the statements given below are True or False:

1. We cannot see air.

Answer

Answer: True


2. Air is a compound and not an element.

Answer

Answer: False


3. A firki rotates only in an open area or in a closed room with the ceiling fan switched on.

Answer

Answer: True


4. Open areas allow air to move here and there.

Answer

Answer: True


5. Air is an opaque material.

Answer

Answer: False


6. All living organisms require air for their survival.

Answer

Answer: True


7. Air contains water vapours.

Answer

Answer: True


8. We breath in CO2 and breath out O2.

Answer

Answer: False


9. A policeman, controlling the traffic wears a mask to prevent the dust particles from entering his respiratory system through breathing.

Answer

Answer: True


10. Air is necessary for burning things.

Answer

Answer: True


11. The major part of air is nitrogen.

Answer

Answer: True


12. Air becomes thinner and thinner as we go higher and higher from the surface of earth.

Answer

Answer: True


13. Plants produce oxygen through photosynthesis.

Answer

Answer: True


14. Plants do not respire.

Answer

Answer: False


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