Class VIII

.................. is a process in which heavy rains wash away the fertile part of the soil.
  1. Cultivating
  2. Mulching
  3. Leaching
  4. Conservation
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
The fresh water is continuously being renewed and recharged through the .................
  1. Hydrological Cycle
  2. Oxygen Cycle
  3. Rock Cycle
  4. Renewable Cycle
.................. is the decline in the productive capacity of land for some time or permanently.
  1. Land Reclamation
  2. Land Degradation
  3. Land use
  4. Land Profile
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
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