Question

P,Q and R are the three gaseous components of air.Gases P and Q can dissolve in the water of
rivers,lakes and seas but gas R does not dissolve in water.The organisms S which live in water
use the gas P dissolved in water to make their food by the process of photosynthesis.All the
organisms which live in water use the gas Q dissolved in water for releasing energy from food.
Gas R is the major component of air.
(a) What are gases ‘P’,’Q’,’R’.
(b) Name the organisms S
1

Answer 1

Answer:

Explanation:

P,Q and R are the three gaseous components of air.Gases P and Q can dissolve in the water of

rivers,lakes and seas but gas R does not dissolve in water.The organisms S which live in water

use the gas P dissolved in water to make their food by the process of photosynthesis.All the

organisms which live in water use the gas Q dissolved in water for releasing energy from food.

Gas R is the major component of air.

(a) What are gases ‘P’,’Q’,’R’.

(b) Name the organisms S

1

Answer 2

Answer:

Explanation:

Gas P - Carbon dioxide

Gas Q - Oxygen

Gas R - Nitrogen

Organisms S - Planktons