Plants are living beings. They need food,
water, and air for survival. Plants derive their food from the earth and the
air. If you at their roots, you will find that’s the ends of these roots are
like fine fibers. We call them root hairs. They absorb water and minerals, then
transport them upwards to the leaves through the trunk and the branches. It is
the leaves which prepare the food.
The green material, chlorophyll present in the
leaves prepare the food like a machine. It converts the carbon dioxide from the
air and water from the ground into sugar with the help of sunlight. This
chemical reaction is called photosynthesis. In fact, the chlorophyll takes
energy from the sunlight and uses it to synthesize the hydrogen from water and
carbon from carbon dioxide for making sugar. This reaction also gives out
oxygen and water which are excreted by the leaves.