Class 6 Science Chapter 15 MCQ (Multiple Choice Questions) of Air Around Us. All the MCQ are taken from important topics given in NCERT Book’s Chapters of class 6 Science chapter 15. Class 6 Science extra questions are helpful for the preparation of school unit tests and periodic exams. Revise the complete chapter using these MCQ objective questions and get confident in exams.

Class 6 Science Chapter 15 MCQ Online Test for 2022-2023

Class: 6Science
Chapter: 15Air Around Us
Contents:MCQ Online Test with Answers

Class 6 Science Chapter 15 MCQ Test with Answers

Q1

The earthworms come out of the soil only during:

[A]. Very cold weather
[B]. Very hot weather
[C]. Very heavy rains
[D]. Very little rains
Q2

Consider the following statements and choose the incorrect one:

[A]. Oxygen gas is essential for breathing or respiration.
[B]. Oxygen or air is not necessary for the purpose of burning or combustion of fuels.
[C]. The animals and plants living on land take the oxygen required for breathing from the air around them.
[D]. The animals and plants living in water take the oxygen required for breathing from the air dissolved in water.
Q3

Read the following sentences carefully, and choose the incorrect one:

[A]. The little dissolved oxygen present in sea water cannot be used for breathing by human beings such as a diver.
[B]. The process of burning of a substance is called combustion.
[C]. Whether we say that air is necessary for burning or oxygen is necessary for burning, it means the same thing.
[D]. If burning coal is covered with a vessel it continues burning.
Q4

Priya is writing some statements, choose the correct statement and help him:

[A]. When a burning candle is covered with a gas jar, the supply of oxygen of fresh air is cut off and it stops burning.
[B]. When the burning clothes of a person are covered with woolen blanket, then the supply of fresh air is cut off and hence the clothes stops burning.
[C]. Oxygen gas is given to patient in hospitals who gave have difficulty in breathing properly.
[D]. All the above
Q5

Vikash is doing his homework which is given by his teacher. Would you help him to choose the correct sentences?

[A]. Plant and animal matter burns by consuming oxygen from air and produces mainly carbon dioxide and a few other gases.
[B]. Green plants need carbon dioxide gas to make food.
[C]. The presence of water vapour in air is important for the working of water cycle in nature.
[D]. All the above
Q6

Shreya is completed her science chapter where she wrote some statements. She wants to know whether the statements are correct or not? Shreya wants to take help from you:

[A]. Smoke is produced by the burning of fuels.
[B]. The tall chimneys in factories are installed to take the smoke produced in the factory high up in the air.
[C]. The traffic policemen wear masks to protect themselves from the smoke containing harmful gases.
[D]. We should breathe in air or inhale air through our mouth.
Q7

Which of the following statement is incorrect?

[A]. All living things require air to breathe
[B]. We can feel air but we cannot see it
[C]. Moving air makes it possible to fly a kite
[D]. Air is present everywhere but not in soil
Q8

In a quiz competition, you are asked a question where you have to choose the statement which is/ are incorrect?

[A]. Air do not help in the dispersal of seeds and pollen of flowers of several plants.
[B]. Air has no role for burning of phosphorus.
[C]. Air has no role for flying aeroplanes and helicopters.
[D]. All the above.
Q9

The components of air which are harmful to living beings are:

[A]. Nitrogen and carbon dioxide
[B]. Dust and water vapour
[C]. Dust and smoke
[D]. Smoke and water vapour
Q10

Which of the following components of air is present in the largest amount in the atmosphere?

[A]. Nitrogen
[B]. Oxygen
[C]. Water vapour
[D]. Carbon dioxide
Q11

Which of the following statement is or are correct?

[A]. The person who climb high mountains are called mountaineers.
[B]. The mountaineers carry oxygen gas cylinder with them while climbing high mountains.
[C]. If the clothes of a person catch fire woolen blanket is put around the burning clothes to extinguish the fire.
[D]. All the above
Q12

Consider the following statements and choose the incorrect one:

[A]. Air is a mixture of many gases.
[B]. Nitrogen and oxygen gases taken together make up about 99% of air.
[C]. The envelope of air that surrounds the earth is called atmosphere.
[D]. The composition of air is always exactly the same.
Q13

Aakash is writing some statements, choose the correct statement, and help him:

[A]. Weather cock is a device which shows the direction in which the air is moving or blowing at a place.
[B]. Air transparent so we can see through it.
[C]. An empty bottle is not exactly empty it contains air in it.
[D]. All the above
Q14

Usha took a lump of dry soil in a glass and added water to it till it was completely immersed. She observed bubbles coming out. The bubbles contain:

[A]. Water vapour
[B]. Only oxygen gas
[C]. Air
[D]. None of the above
Q15

Aditi is completed her science chapter where she wrote some statements. She wants to know whether the statements are correct or not? Aditi wants to take help from you:

[A]. Air is a mixture of several two gases.
[B]. No living things can survive without air.
[C]. Moving air is called wind.
[D]. It is the moving air or blowing air which makes a phirki rotate.
Q16

The components of air which is utilized by the plants in respiration is:

[A]. Nitrogen
[B]. Carbon dioxide
[C]. Oxygen
[D]. Water vapour
Q17

In an activity to show that air is mainly a mixture of two gases (nitrogen and oxygen), the carbon dioxide produced by the burning of candle in air is absorbed by dissolving a substance X in water in the trough. The substance X is:

[A]. Washing soda
[B]. Baking soda
[C]. Caustic soda
[D]. Soda water
Q18

About one-fifth of ordinary air is:

[A]. Nitrogen
[B]. Carbon dioxide
[C]. Water vapour
[D]. Oxygen
Q19

While deep under the sea, a deep-sea diver cannot utilize the oxygen dissolved in sea water for breathing because he does not have:

[A]. Thin skin
[B]. Gills
[C]. Stomata
[D]. Breathing tubes
Q20

Nitrogen is needed by the plants to make:

[A]. Fats
[B]. Carbohydrates
[C]. Proteins
[D]. Minerals
Q21

The crop plants do not depend on humans for obtaining one of the following. This one is:

[A]. Fertilizers
[B]. Oxygen
[C]. Carbon dioxide
[D]. Irrigation
Q22

Which of the following is not a common component of air that we normally breathe in?

[A]. Oxygen
[B]. Water vapour
[C]. Carbon monoxide
[D]. Nitrogen
Q23

If we try to immerse an empty glass in a water container vessel (glass mouth towards bottom side but not touched the bottom), how will some air be release from that glass?

[A]. Pour more water into the basin.
[B]. Blow bubbles into the class.
[C]. Tilt the glass
[D]. Push the glass further down
Q24

How can we find out that there is air in a sponge?

[A]. Squeeze the sponge in air
[B]. Pour water into the sponge
[C]. Blow some air into the sponge
[D]. Squeeze the sponge in water
Q25

If the clothes of a person catch fire while working in the kitchen, which of the following should be used to cover the burning clothes of a person so as to extinguish fire?

[A]. Nylon blanket
[B]. Woolen blanket
[C]. Terylene blanket
[D]. Polythene sheet

App for Class 6 all Subjects

Help and Support

If use feel difficulty during the use of contents, please contact us for help. All the contents are free to use without any login. To clear all the key concepts we have added about 80 to 100 MCQ questions with suitable answer and explanation.