ecology and environment awareness - Category wise Question and Answer Practice Test with Solutions

Question : 11

Which one is nature's cleaner ?

a) Producers

b) Decomposers and scavengers

c) Consumers

d) Symbionts

Question : 12

More than 70% of world’s freshwater is contained in

a) glaciers and mountains

b) antarctica

c) polar ice

d) greenland

Question : 13

Which most often limits the primary productivity of the ecosystem ?

a) Oxygen

b) Consumers

c) Solar radiation/light

d) Nitrogen

Question : 14

10% law of flow of energy in ecosystem was proposed by

a) Carl Mobius

b) Tansley

c) Lindeman

d) Darwin

Question : 15

'Project Tiger' in India was started in

a) 1972

b) 1981

c) 1970

d) 1985