What are two major human activities that contribute to deforestation?

Cultivation of land and building houses or factories.

Deforestation can lead to an increase in the frequency of ___ and ___.

Natural calamities like floods and droughts.

True or False: Deforestation has no effect on global warming.

False. Deforestation contributes to global warming by increasing carbon dioxide levels.

Fill in the blank: Deforestation decreases the ___ and ___ of soil.

Nutrient content and water holding capacity.

What is desertification, and how is it related to deforestation?

Desertification is the process where fertile land becomes desert due to soil erosion and loss of nutrients, often caused by deforestation.

Riddle: I am made from trees but can be recycled several times. What am I?

Paper.

What is reforestation?

Reforestation is the process of restocking deforested areas by planting new trees.

True or False: It only takes one tree to produce one ton of paper.

False. It takes 17 full-grown trees to make one ton of paper.

Fill in the blank: Increasing the number of trees can help reduce ___ in the atmosphere.

Carbon dioxide.

What are the two steps to follow for effective reforestation?

Plant new plants of the same species that were present before and ensure the number of trees planted is equal to or greater than those cut.