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Ecology MCQ Question with Answer

Ecology MCQ with detailed explanation for interview, entrance and competitive exams. Explanation are given for understanding.

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Question No : 1
Biome is

a part of the earth and its atmosphere which inhabits livings organisms
a community of organisms interacting with each other
the fauna and flora on land
the fauna and flora on ocean

Question No : 2
Soil particles are arranged in order of increasing size are

sand, silt and clay
silt, sand and clay
clay, sand and silt
clay, silt and sand

Question No : 3
The most polluted city in the world is

Tokyo
New York
Calcutta
Mexico

Question No : 4
In a food-chain, the saprophytic organisms are

producers
consumers
predators
decomposers

Question No : 5
Acid rain is

limited to industrial areas
presence of large quantity of SO^2 in the atmosphere
a natural phenomenon
presence of CO^2 in the atmosphere

Question No : 6
The term "ecosystem" was first proposed by

A.G. Tansely
H.T. Odum
Karl Mobius
None of these

Question No : 7
Plants growing on sea shores show characters of

hydrophytes
mesophytes
xerophytes
halophytes