Question

why do we need plant​

Answer 1

Plants are really important for the planet and for all living things. Plants absorb carbon dioxide and release oxygen from their leaves, which humans and other animals need to breathe. Living things need plants to live - they eat them and live in them. Plants help to clean water too.

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Answer 2

Answer:

Plants have several magic tricks which they can do that no other organisms on earth can do.

1) Plants can change the energy in sunshine into energy in chemicals. When we eat plants, it is that energy which we tap into and use for our own needs - running, thinking, breathing etc etc.

2) Plants can make sugar from Carbon dioxide and Water (with the help of the energy from the sun). So, the sugar which we put in our tea and the sugars which are found in fruits and other sweet foods all come from air and water! Plants store spare sugar as starch and that is one of the main chemicals which we eat for energy in bread, potatoes, cereals, rice etc.

3) Plants can make those simple sugars into complicated chemicals. We rely on plants to make proteins for us and we need proteins for our growth. We cannot make our own proteins - we need plants to do that for us. The same is true of vitamins and partly so for fats and oils.

4) Plants turn Carbon dioxide in the air into Oxygen. Oxygen is the waste product of photosynthesis (the name for the chemical which plants use to do all this) and this is just what we need to breathe in to enable us to release the energy from sugars. Our waste product of this process is Carbon dioxide which we breathe out and plants need for photosynthesis. (A sort of mutual sharing - plants need animals nearly as much as animals need plants).

Explanation:

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