UPSC Prelims Marathon 27th January – Environment, Ecology & Biodiversity – 2025

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We are posting prelims marathon MCQs for today. In this initiative, you can attempt 10 subjective MCQs daily. Daily Quiz UPSC Prelims Marathon 27th January Environment, Ecology & Biodiversity

For schedule, refer to the archive link given below. Best UPSC institute In Delhi,

For the Prelims Marathon archive – click here,

Start Quiz

Marking Pattern

Correct Answer : 2

Wrong Answer : -0.66

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CHOOSE A QUESTION

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Time Left :5

Question No. 1

Which of the following “deals with the ways in which organisms are molded by their environment, how they make use of environmental resources including energy flow and mineral cycling”?

ABiostatics

BPossibilism

CConservation

DEcology

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Question No. 2

Which of the following ancient text/s has reference to ecology?
1.The Vedas
2.The Samhitas
3.The Aranyakas
Select the correct answer from below given codes:

AOnly one

BOnly two

COnly three

DNone

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Question No. 3

Which of the following is/are biotic component/s of the environment?
1.Non – green plants
2.Radiation
3.Decomposers
Select the correct answer from below given codes:

AOnly one

BOnly two

COnly three

DNone

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Question No. 4

Consider the following statements:
1.In terrestrial ecosystem, producers are various species of microscopic algae.
2.In aquatic ecosystem producers are basically herbaceous and woody plants.
Which of the statements given above is/are correct?

A1 only

B2 only

CBoth 1 and 2

DNeither 1 nor 2

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Question No. 5

Which of the following is/are consumer/s?
1.Cow
2.Rabbit
3.Wolves
Select the correct answer from below given codes:

AOnly one

BOnly two

COnly three

DNone

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Question No. 6

The term “Saprotrophs” is associated with which of the following?

AProducers

BConsumers

CDecomposers

DSecondary consumers

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Question No. 7

“Ecosystems are capable of maintaining their state of equilibrium and regulate their own species structure and functional processes” – related to?

ACarrying capacity

BHomeostasis

CEnvironmental determinism

DPossibilism

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Question No. 8

Which of the following is/are example/s of ecotone zones?
1.Mangroves
2.Grasslands
3.Oxbow lakes
Select the correct answer from below given codes:

AOnly one

BOnly two

COnly three

DNone

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Question No. 9

“It is the unique functional role or place of a species in an ecosystem” denotes?

AEcotone

BNiche

CHomeostasis

DEcology

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Question No. 10

Which of the following fauna is/are commonly found in tundra region?
1.Lemming
2.Penguins
3.Ptarmigan
Select the correct answer from below given codes:

AOnly one

BOnly two

COnly three

DNone

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Total Number of Questions :

Total Not Attempted Questions :

Total Correct :

Total Wrong :

For schedule, refer to the archive link given below. Best UPSC institute In Delhi,

For the Prelims Marathon archive – click here,