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 dissolved in water use the gas Q dissolved in water for releasing energy from food. gas R is the major component of air. a) name the gases P,Q, R (b) name the organisms S.
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to make there food by the process photosynthesis
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