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Environmental Science

Environmental Science
_________ layer is very near to earth

Mesosphere
Thermosphere
Troposphere
Stratosphere

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Environmental Science
High biological oxygen demand indicates:

all of these
intense level of microbial pollution
absence of microbial pollution
moderate microbial pollution

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Environmental Science
Warming in the stratosphere is mainly caused by:

Release of latent heat energy during condensation
Frictional heating caused by meteorites
Absorption of ultraviolet radiation by ozone
Chemical reactions between ozone and chlorofluorocarbons

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Environmental Science
_________ element had guided the earlier navigators to keep them on right path.

Uranium
Magnetite
Carbon
Coal

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Environmental Science
Forests grow in high rain fall areas are

temperate forests
Tundra
ever green forests
conifers

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Environmental Science
Red data book contains data of

economically important species
threatened species
all plant species
all animal species

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MORE MCQ ON Environmental Science

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