Air

Q. Which layer of the atmosphere has the maximum amount of gases present in it?

1. Mesosphere
2. Exosphere
3. Troposphere
4. Stratosphere

Q.

Which of these is not a constituent of the atmosphere?

1. Oxygen

2. Aluminium

3. Nitrogen

4. Carbon dioxide

Q.

Air moves from ____ pressure to ____ pressure.

1. left, right

2. right, left

3. high, low

4. low, high

Q.

Nitrogen constitutes nearly ____ % of the atmosphere.

1. 21
2. 57
3. 42
4. 78

Q. Which gas makes up around 21% of our atmosphere?

1. Oxygen
2. Nitrogen
3. Carbon dioxide
4. Hydrogen

Q.

Which layer of the atmosphere has ozone layer in it?

1. Troposphere

2. Stratosphere

3. Mesosphere

4. Thermosphere

Q.

Hot air is less dense than cold air.

1. True

2. False

Q. Ozone layer protects us from ___________.

1. UV rays
2. meteors
3. light
4. pollution

Q. Nitrogen gas is used in packaging of chips.

1. True
2. False

Q. The blanket of air that surrounds the earth is called the ___________.

1. atmosphere
2. temperature
3. crust
4. biosphere