8 th biology conservation of plants and animals

Which of the following is true:

• National park cannot be downgraded to Wildlife sanctuary.

• National park can be downgraded to Wildlife sanctuary.

• Wildlife sanctuary can be downgraded to National park.

• Wildlife sanctuary cannot be downgraded to National park.

• Wildlife sanctuary can be upgraded to National park.

An ________ is made of all the plants, animals and microorganisms in an area along with non living components such as climate, soil, river delta’s etc.

The Pachmarhi biosphere reserves consist of

• One national park named Satpura

• Two wild life sanctuaries named Bori and Pachmarhi

• One wild life sanctuary named Bori

• One wild life sanctuary named Pachmarhi

__________ are large areas of protected land for conservation of wild life, plants and animals resources and traditional life of tribals living in the area.

________ are areas reserved for wild life where they can freely use the habitat and natural resources.

Preserving areas of biological importance make them a part of our national heritage.

• True

• False

____________ are areas where animals are protected from any disturbance to them and their habitat.

____________refers to the variety of organisms existing on the earth, their interrelationships with the environment.

_______________ is that part of the earth in which organisms exist or which supports life.

A major threat of survival of organisms like variety of plants and animal which exist on earth is due to................

• Desertification

• Ecosystem

• Deforestation

• Both desertification and deforestation