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Heat and Light

1. Heat is a form of energy that gives the feeling of hotness or coldness of a body.

2. Sun is the natural source of heat and light. Energy obtained from sun is termed as solar energy. 

(i) Heat and light are required for the process of photosynthesis.

(ii) Heat is responsible for the process of evaporation of water (from water bodies). Evaporation is fo…

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