1. The Green House effect is mostly caused by
(a) Carbon dioxide in the atmosphere
(b) Infra-red Radiation
(c) Moisture in the atmosphere
(d) Ozone layer
2. The maximum biodiversity is found in
(a) Tropical rain forests
(b) Temperate forests
(c) Coniferous forests
(d) Arctic forests
3. Which one of the following is the most important factor responsible for decline of bio-diversity ?
(a) Genetic assimilation
(b) Controlling predators
(c) Destruction of habitat
(d) Controlling pests
4. Which one of the following is important strategy for the conservation of Biodiversity ?
(a) Biosphere Reserves
(b) Botanical Gardens
(c) National Parks
(d) Wild Life Sanctuaries
5. Endangered species are listed in
(a) Dead Stock Book
(b) Red Data Book
(c) Live Stock Book
(d) None of the above
6. Climate change is caused by
(a) Green house gases
(b) Depletion of ozone layer
(c) Pollution
(d) All the above
7. Which one of the following ecosystem is known as the ‘Land of Big Games’ ?
(a) Selva
(b) Savanna
(c) Prairie
(d) Taiga
8. Biotic component of the environment does not include
(a) Soil system
(b) Animal system
(c) Micro-organism system
(d) Plant system
9. Which one of the following is a part of Geological cycle ?
(a) Carbon cycle
(b) Hydrogen cycle
(c) Hydrological cycle
(d) Nitrogen cycle
10. Which one of the following is related to ozone formation ?
(a) Photosynthesis process
(b) Photochemical process
(c) Chemosynthesis process
(d) Hydrolysis process
Answers Key
1.(a)
2.(a)
3.(c)
4.(a)
5.(b)
6.(d)
7.(b)
8.(a)
9.(c)
10.(b)
1.(a)
2.(a)
3.(c)
4.(a)
5.(b)
6.(d)
7.(b)
8.(a)
9.(c)
10.(b)
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