set 1 MCQ Questions & Answers Detailed Explanation

Question : 1

The animals which occupy the same trophic level are

a) Deer & Bees

b) Snakes & Earthworm

c) Lion & Bees

d) Crow & Cow

Question : 2

Acid rain is caused due to increase in concentration of (in atmosphere)

a) CO and CO₂

b) CO and SO₃

c) SO₂ and NO₂

d) O₃ and dust

Question : 3

Which one of the following is not a gaseous biogeochemical cycle in ecosystem ?

a) Phosphorus cycle

b) Nitrogen cycle

c) Sulphur cycle

d) Carbon cycle

Question : 4

Green house gases include

a) CO₂ , O₂ , N₂ , NO₂ and NH₃

b) CH₄ , N₂ , CO₂ and NH₃

c) CO₂ , CFC, CH₄ and NO₂

d) CFC, CO₂ , NH₃ and N₂

Question : 5

Habitat loss and fragmentation, over exploitation, alien species invasion and co-extinction are causes for

a) Migration

b) Biodiversity loss

c) Population explosion

d) Pollution

Question : 6

The age of pyramid with broad base indicates

a) low percentage of young individuals

b) high percentage of old individuals

c) high percentage of young individuals

d) low percentage of old individuals