Previous Year Questions (PYQ) of UPSC/UPPSC/BPSC (Prelims) on Ecology
Q
1. ‘Ecology’ is the study of the relationship between:
(a)
Organism and environment
(b)
Men and forest
(c)
Soil and water
(d)
Husband and wife
Answer
(a)
Q
2. The term Ecosystem was proposed by:
(a)
G. tailor
(b)
E. Hartigan
(c)
D.R. Stoddart
(d)
Tansley
Answer
(d)
Q
3. Which of the following is not correct about the ecosystem?
(a)
It comprises both, abiotic and biotic components
(b)
It has its productivity.
(c)
It is a closed system.
(d)
It is a natural resource system.
Answer
(c)
Q
4. Which of the following is an artificial ecosystem?
(a)
Ponds
(b)
Rice Field
(c)
Forest
(d)
None of these
Answer
(b)
Q
5. The number of organisms that can be supported by the environment in a given
area is known as:
(a)
Population
(b)
Carrying Capacity
(c)
Pyramid of number or biomass
(d)
None of the above
Answer
(b)
Q
6. Which one of the following terms describes not only the physical space
occupied by an organism but also, its functional role in the community of
organisms?
(a)
Ecotone
(b)
Habitat
(c)
Ecological niche
(d)
Home range
Answer
(c)
Q
7. Which one of the following is the largest ecosystem of the world?
(a)
Ocean
(c)
Forest
(b)
Grassland
(d)
Mountains
Answer
(a)
Q
8. Which of the following does not help to maintain ecological balance?
(a)
Cutting forest
(b)
Afforestation
(c)
Rainwater Management
(d)
Biosphere Reserves
Answer
(a)
Q
9. Which of the following is not a biotic component of an Ecosystem?
(a)
Air
(b)
Bacteria
(c)
Plant
(d)
Animals
Answer
(a)
Q
10. The primary source of energy in Eco-body is:
(a)
Energy emitted by fermentation
(b)
Preserved vegetable sugar
(c)
Solar energy
(d)
None of the above.
Answer
(c)
Q
11. Which one of the following trees is not eco-friendly?
(a)
Babul
(b)
Eucalyptus
(c)
Neem
(d)
Pipal
Answer
(b)
Q
12. The measurement unit of the ecological footprint is:
(a)
Global hectares
(b)
Nanometer
(c)
Hoppus cubic foot
(d)
Cubic ton
Answer
(a)
Q
13. Which of the following statements is true about Bionomics?
1.
It means ‘management of life’
2.
It is synonymous with ecology.
3.
It stresses the value of natural systems which influence human systems.
Code:
(a)
Only 1
(b)
1 and 2
(c)
2 and 3
(d)
1,2 and 3
Answer
(c)
Q
14. In the grassland, trees do not replace the grasses as a part of an
ecological succession because of:
(a)
Insects and fungi
(b)
Limited sunlight and paucity of nutrients
(c)
Water limits and fire
(d)
None of the above
Answer
(b)
Q
15. Consider the following statement about eco-system:
1.
The production at the autotroph level is said to be primary productivity.
2.
The secondary productivity refers to the production at the heterotroph level.
Of
the above, the correct statement is/are:
(a)
Only 1
(b)
Only 2
(c)
Both 1 and 2
(d)
Neither 1 and 2
Answer
(c)
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