Multiple Choice Questions (MCQ) with Answers on Ecosystems

21-The following type of ecosystem is of utmost importance from human point of view

(A) Unsubsidized Natural Solar powered ecosystems

(B) Naturally Subsidized Solar powered ecosystems

(C) Man Subsidized Solar powered ecosystems

(D) Fuel powered ecosystems

 

22-In which of the following ecosystems large volumes of air are purified?

(A) Unsubsidized Natural Solar powered ecosystems

(B) Naturally Subsidized Solar powered ecosystems

(C) Man Subsidized Solar powered ecosystems

(D) Fuel powered ecosystems

 

23-Every Ecosystem has ___ major component(s).

(A) One

(B) Two

(C) Three

(D) Four

 

24-The following is (are) Abiotic components of the ecosystem.

(A) Soil

(B) Carbon

(C) Protein

(D) All of the above

 

25- Humus is _____ factor of an Ecosystem.

(A) Physical

(B) Chemical

(C) Both (A) and (B)

(D) None of the above

 

26-The following is (are) Producer(s)

(A) Algae

(B) Green plants

(C) Photosynthetic bacteria

(D) All of the above

 

27-The autotrops

(A) are self nourishing organisms

(B) derive energy from sunlight

(C) make organic compounds from inorganic compounds

(D) All of the above

 

28-Autotropic components are

(A) Producers

(B) Consumers

(C) Decomposers

(D) None of the above

 

29-______ are Primary consumers.

(A) Herbivores

(B) Carnivores

(C) Omnivores

(D) All of the above

 

30-The following are dependent on others for food

(A) Autotrops

(B) Heterotrops

(C) Both (A) and (B)

(D) None of the above

 

ANSWERS:

21-(A), 22-(A), 23-(B), 24-(D), 25-(B), 26-(D), 27-(D), 28-(A), 29-(A), 30-(B)