19197.The main reserve of fresh water on earth surface is
Ground water
Rivers
Lakes
Polar ice caps and glaciers
19198.Main cause of extinction of species from tropical areas is
Afforestation
Deforestation
Pollution
Soil erosion
19199.The natural resources which are continuously consumed by man but are replenished by nature with a reasonable period of time is called
Exhaustible
Inexhaustible
Exhaustible renewable
Exhaustible non-renewable
19200.Plants of endangered species are conserved through
Herbarinum
Gene library
Gene bank
Reducing pollution
19201.The percentage of evaporation of water from land and ocean surface are respectively
16 and 84%
84 and 16 %
65 and 35%
60 and 40%
19202.In a National Park protection is provided to
Entire ecosystem
Flora and fauna
Fauna only
Flora only
19204.Which has caused maximum damage to Indian forests
Selective harvesting
Block cutting
Taungya cultivation
Jhum cultivation
19206.The human activities resulting in endangered species are
Poaching
Deforestation
Forest fires
All of these