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10Click to start!
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10The layer of air around the Earth is called the atmosphere.
Air is found only inside houses.
Oxygen is needed by all living things to breathe.
The atmosphere contains only oxygen gas.
Dust particles are also present in the air.
Flags flutter because of water vapour in the air.
Nitrogen is one of the gases present in air.
Without air, living things cannot survive.
The atmosphere protects the Earth from harmful rays of the Sun.
The exosphere is the lowest layer of the atmosphere where weather changes occur.
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What is the atmosphere?
Which gas do we breathe in?
What causes water drops on the outside of an ice glass?
Which of the following is present in air?
What makes leaves and flags move?
Which gas helps living things survive?
In which layer of the atmosphere do most weather phenomena like clouds and rain occur?
Which gas is present in the largest amount in the Earth's atmosphere?
The ozone layer is important because it:
Which layer of the atmosphere contains the ozone layer?
The layer of air surrounding the Earth is called the ______.
Air is a mixture of different ______.
Living things breathe with the help of ______.
______ makes the flag flutter.
Drops of water form on a glass containing ice because of ______ vapour.
The atmosphere contains air, ______, water vapour and clouds.
______ gas is used by plants and animals for breathing.
______ is the gas present in the largest amount in air.
The thick blanket of air surrounding the Earth is called the ______.
The layer of the atmosphere closest to the Earth’s surface is the ______.