Question

(Listen to the passage read by the teacher and answer the questions)
What happens when trees are felled?
Over the years, billion tons of carbon dioxide in the atmosphere are absorbed by the world's forests. When the trees are cut or burnt down, the carbon stored in the trees for years is released back into the atmosphere. Deforestation releases carbon dioxide from the trees. This speeds up the rate of global warming. When trees are cut, the forests are destroyed. We need more trees to absorb the amount of additional carbon dioxide in the atmosphere. However, forests are not being replaced at the same rate at which they are being destroyed.

Answer the following questions:
1. How are forests useful in preventing global warming?
2. Trees absorb ____
a) carbon monoxide
b) carbon dioxide
c) nitrogen
3. What is deforestation?
4. Why shouldn't we fell trees?
Chapter2 THE NEEM TREE
TNSCERT Class 7 Term 1

Answer 1

1 carbon absorbed by trees which is harmful for our health
2.b
3.cutting of trees in a large qty is called deforestation