The Atmosphere

Q. Identify the gases depicted with their percentage composition in the given pie chart.

1. (i) Nitrogen (ii) oxygen (iii) carbon dioxide (iv) argon (v) water vapour
2. (i) Oxygen (ii) nitrogen (iii) water vapour (iv) argon (v) carbon dioxide
3. (i) Nitrogen (ii) oxygen (iii) argon (iv) carbon dioxide (v) water vapour
4. (i) Water vapour (ii) oxygen (iii) nitrogen (iv) carbon dioxide (v) argon

Q. Sort the layers of the atmosphere with the bottom-most option being the layer farthest to earth.

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

Q. The ozone layer is present in the part of the atmosphere.

1. troposphere
2. mesosphere
3. stratosphere
4. exosphere

Q. The availability of the in the atmosphere helped life flourish on the early earth.

1. carbon dioxide
2. methane
3. nitrogen
4. oxygen