Question

why tree is green ?​

Answer 1

This is because they contain a green pigment called chlorophyll which is necessary for the plants to make food for themselves using light energy and carbon dioxide (a gas in the air) and water.

Answer 2

Answer:

That´s a great question. Plants (everything from tiny algae in the oceans to trees) have green parts (or in some cases are completely green). This is because they contain a green pigment called chlorophyll which is necessary for the plants to make food for themselves using light energy and carbon dioxide (a gas in the air) and water. The green pigment is able to harvest the light energy, and use this energy to change carbon dioxide plus water into sugars that both pants and people eat!

Explanation:

hope this helps u....