Ecosystem, Pollution and Biodiversity CDS Questions

CDS Environmental Geography

Ecosystem, Pollution and Biodiversity MCQ Questions


7.
A tiger feeding on a deer that grazed on grass is an example of a:
A.
Primary consumer
B.
Secondary consumer
C.
Tertiary consumer
D.
Decomposer
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ANSWER :
B. Secondary consumer
8.
Which of the following correctly classifies humans in a typical food chain?
A.
Producers
B.
Decomposers
C.
Omnivores
D.
Autotrophs
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ANSWER :
C. Omnivores
9.
Consumers in an ecosystem are also known as:
A.
Autotrophs
B.
Heterotrophs
C.
Saprotrophs
D.
Photoautotrophs
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ANSWER :
B. Heterotrophs
10.
Which one of the following is an example of a tertiary consumer?
A.
Grass
B.
Goat
C.
Wolf eating a fox
D.
Earthworm
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ANSWER :
C. Wolf eating a fox
11.
Parasites in an ecosystem are categorised as:
A.
Producers
B.
Consumers
C.
Decomposers
D.
Detritivores
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ANSWER :
B. Consumers
12.
Decomposers in an ecosystem primarily include:
A.
Plants and algae
B.
Insects and reptiles
C.
Bacteria and fungi
D.
Birds and mammals
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ANSWER :
C. Bacteria and fungi