Learn Class 8 Science - Conservation of Plants and Animals

For conserving plants and animals, sanctuaries, national parks, biosphere reserves are maintained.

Wildlife sanctuaries

It is an area away from wild animals where they can use natural resources and roam freely. Protected areas play an immense role in the conservation of endangered species. For example, in Assam, there is the Kaziranga Wildlife Sanctuary to protect rhinos. They are allowed to breed there. Hunting, killing, and poaching of organisms is strictly prohibited in the sanctuaries. There are 564 protected areas in India.

National parks

A vast area with enough space to preserve the totality of ecosystems is called a national park. It protects the fauna, flora, landscape and historical ecosystem of the area. There are 106 national parks in India. Ex. Kanha National Park in Rajasthan.

Biosphere reserve

A biosphere reserve is a widely protected area that preserves the biological diversity and culture of a specific area. It includes marine, coastal and terrestrial ecosystems. In addition, biosphere reserves are learning sites for sustainable development. There are 18 biosphere reserves in India.

Deforestation

Cutting down trees and clearing land for other purposes is called deforestation. Today, deforestation is the biggest threat to wildlife. This is because deforestation leads to the destruction of the dwellings of wildlife. This makes it difficult for organisms to survive.

Conservation of Plants and Animals Sample Questions for Class 8

Question 1

The species of plants and animals which are found exclusively in a particular area are:
A. Endemic species
B. Endangered species
C. Rare species
D. Extinct species

Question 2

A population of an organism which is at risk of becoming extinct in the near future is known as
A. Critically endangered
B. Extinct
C. Endangered
D. Vulnerable

Question 3

Silent valley of Kerala is preserved because
A. It contains very rare species of plants and animals
B. The soil is rich in minerals
C. There the areas of land were used extensively for agricultural purpose
D. It has pine trees

Question 4

Uncontrolled deforestation leads to: I   –  The destruction of habitats II  –  Landslides III –  Flooding
A. I only
B. I and II only
C. l and III only
D. II and III

Question 5

Which of the following is NOT an effective way to conserve living organisms?
A. Carry out afforestation
B. Establish national parks
C. Import organisms from other countries
D. Establish centres to look after endangered species