The Atmosphere

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

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

Q. Identify the labelled parts of the atmosphere in the given diagram.

1. (i) Thermosphere (ii) Ionosphere (iii) Troposphere (iv) Karman line
2. (i) Troposphere (ii) Ozone layer (iii) Mesosphere (iv) Thermosphere
3. (i) Karman line (ii) Mesosphere (iii) Troposphere (iv) Thermosphere
4. (i) Thermosphere (ii) Mesosphere (iii) Troposphere (iv) Tropopause

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