Question

ype Questions :
1. 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 (i) P (ii) and (iii) R?
(b) Name the organisms S.​

Answer 1

answer;

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. ... 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.