Cutting of trees in a forest is called

At the beginning of the $20^{th}$ century,forests covered about $......\%$ of the total land area of India,and by the end of the century,this had shrunk to $........\%$.

What is the percentage of forest loss in tropical and temperate regions,respectively?

Which of the following factors is contributing to an overload of the carbon cycle?

The process of planting trees in a forest area to increase forest cover is known as ..........

Give scientific reasons: The effects of deforestation are observed to be severe.