Multiple Choice Questions (MCQ) with Answers on Ecosystems

11-The following type of ecosystem is of utmost importance from a human point of view
(A) Unsubsidized natural solar-powered ecosystems
(B) Naturally Subsidized Solar-powered ecosystems
(C) Mansubsidized solar-powered ecosystems
(D) Fuel-powered ecosystems
[expand title=”View Answer”](A) Unsubsidized natural solar-powered ecosystems[/expand]
 
12-In which of the following ecosystems have large volumes of air purified?
(A) Unsubsidized Natural Solar powered ecosystems
(B) Naturally Subsidized Solar powered ecosystems
(C) Man Subsidized Solar powered ecosystems
(D) Fuel powered ecosystems
[expand title=”View Answer”](A) Unsubsidized Natural Solar powered ecosystems[/expand]
 
13-Every Ecosystem has _ major component(s).
(A) One
(B) Two
(C) Three
(D) Four
[expand title=”View Answer”](B) Two[/expand]
 
14-The following is (are) Abiotic components of the ecosystem.
(A) Soil
(B) Carbon
(C) Protein
(D) All of the above
[expand title=”View Answer”](D) All of the above[/expand]
 
15- Humus is ___ factor of an Ecosystem.
(A) Physical
(B) Chemical
(C) Both (A) and (B)
(D) None of the above
[expand title=”View Answer”](B) Chemical[/expand]
 
16-The following is (are) Producer(s)
(A) Algae
(B) Green plants
(C) Photosynthetic bacteria
(D) All of the above
[expand title=”View Answer”](D) All of the above[/expand]
 
17-The autotrophs
(A) are self-nourishing organisms
(B) derive energy from sunlight
(C) make organic compounds from inorganic compounds
(D) All of the above
[expand title=”View Answer”](D) All of the above[/expand]
 
18-Autotropic components are
(A) Producers
(B) Consumers
(C) Decomposers
(D) None of the above
[expand title=”View Answer”](A) Producers[/expand]
 
19-__ are Primary consumers.
(A) Herbivores
(B) Carnivores
(C) Omnivores
(D) All of the above
[expand title=”View Answer”](A) Herbivores[/expand]
 
20-The following are dependent on others for food
(A) Autotrophs
(B) Heterotrophs
(C) Both (A) and (B)
(D) None of the above
[expand title=”View Answer”](B) Heterotrops[/expand]