| (iii) This process of production of carbohydrates by green plants, is called ‘photosynthesis’. (iv) The carbohydrates formed by the plants, are used by them to grow; and we use plants for our nourishment. j.) Indeed, without the Sun, the Earth would be "a cold, dark and dead place," like moon. |
| *h.) The Sun heats the lands, oceans and air. (i) It make evaporates water from lakes and oceans. ***(ii) When the water vapors cools, it drops as rain, or snow, or dew; giving us the moisture we need for drinking water, and for plants and animals to grow. *i.) Green plants: (i) Use the Sun’s rays to turn carbon dioxide and water into carbohydrates. (ii) At same time, they release oxygen for us to breathe and live. |