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Man and Environment MCQ Question with Answer

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

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Question No : 29
Correct definition of ecosystem is :

A community of organisms interacting with one another
The abiotic component of a habitat
The part of the earth and its atmosphere which inhabits living organisms
The community of organisms together with environment in which they live
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Question No : 30
Vegetation in Delhi is predominantly

halophytic
mesophytic
xerophytic
hydrophytic
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Question No : 31
What will happen if our water resources are continued to be polluted by industrial wastes

Sufficient food will not be available to water organisms
Sufficient oxygen will not be available to water organisms
Drinking water will not be available
B.O.D value of water will decrease
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Question No : 32
Humus is an example of

soil structure
organic colloids
crystalloids
none of the above
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Question No : 33
. Biome is

the flora on land
the flora in ocean
a community of organisms interacting with each other
that part of earth and its atmosphere which inhabits living organisms
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Question No : 34
The nitrifying bacteria which oxidise nitrite to nitrates include

Nitrosomonas
Azotobacter
Nitrobacter
Closteridium
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Question No : 35
Desert plants are generally

Succulents
Heterophyllous
Herbaceous
Viviparous
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