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Environmental Science

Environmental Science
Which among the following result in the formation of soil?

Weathering
Pollution
Radiation
Erosion

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Environmental Science
The book silent spring was written by

Anil Agarwal
Madhav Gadgil
Rachel Carson
E.O.Wilson

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Environmental Science
A river with high BOD value is

highly clean
none of these
highly productive
highly polluted

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Environmental Science
The electrified region of the upper atmosphere is called the:

Stratosphere
Mesosphere
Troposphere
Thermosphere
Ionosphere

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Environmental Science
The most abundant greenhouse gas in the earth's atmosphere:

Chlorofluorocarbons (CFCs)
Carbon dioxide (CO2)
Nitrous oxide (N2O)
Methane (CH4)
Water vapour (H2O)

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Environmental Science
Ecotype is a type of species in which environmentally induced variations are

Genetically not related
Genetically fixed
None of these
Temporary

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