Question 1

What is the primary cause of deforestation caused by human activities?

Accepted Answer

Deforestation is primarily caused by human activities such as procuring land for cultivation, building houses and factories, and making furniture or using wood as fuel. Among these, procuring land for agriculture is the largest driver.

Question 2

Which of the following is a consequence of deforestation?

Accepted Answer

Deforestation increases the temperature and pollution level on the earth. It increases the level of carbon dioxide in the atmosphere, leading to global warming, and also causes a reduction in rainfall and soil fertility.

Question 3

What is the term used for areas where animals are protected from any disturbance to them and their habitat?

Accepted Answer

A wildlife sanctuary is an area where animals and their habitat are protected from any kind of disturbance, providing suitable living conditions for wild animals.

Question 4

Which of the following terms refers to the restocking of destroyed forests by planting new trees?

Accepted Answer

Reforestation is restocking of the destroyed forests by planting new trees. The planted trees should generally be of the same species which were found in that forest.

Question 5

Species found exclusively in a particular area are known as:

Accepted Answer

Endemic species are those species of plants and animals which are found exclusively in a particular area and are not naturally found anywhere else.

Conservation of Plants and Animals — CBSE Class 8 Science Important Questions & Revision Notes