Class VIII

Species of some animals are on the verge of extinction as their population has decreased considerably. Such species are known as ..................
  1. Endangered Species
  2. Extinct Species
  3. Dying Species
  4. Dead Species
A natural area designated to protect the ecological integrity of one or more ecosystems for present and future generations is known as ..................
  1. Wildlife Sanctuaries
  2. Bioreserves
  3. Botanical Gardens
  4. National Parks
Trees in these .................. shed their leaves in a particular season in order to conserve loss of moisture through transpiration: (select the incorrect one)
  1. Evergreen Forests
  2. Tundra
  3. Deforestation
  4. Deciduous Forests
In the biosphere living beings are inter-related and interdependent on each other for survival. This life supporting system is known as the .................
  1. Interdependence
  2. Ecology
  3. Ecosystem
  4. Food Circle
Natural Vegetation and wildlife exist only in the narrow zone called ..................
  1. Lithosphere
  2. Hydrosphere
  3. Atmosphere
  4. Biosphere
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