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Environmental Science

Environmental Science
The planet with a strong greenhouse effect, whose surface temperature averages 480oC (900oF) is:

Earth
None of these
Venus
Mars
Pluto

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Environmental Science
World's most problematic aquatic weed is

eichornia
wolffia
azolla
trapa

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Environmental Science
Carbon dioxide is called greenhouse gas because it is

Transparent to heat but traps sunlight
Transparent to sunlight but traps heat
Transparent to both sunlight and heat
Used in green-house to increase plant growth

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Environmental Science
Fog that forms off the coast of Newfoundland is mainly a form of:

Frontal fog
Advection fog
Upslope fog
Steam fog
Radiation fog

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Environmental Science
Wild life is continuously decreasing. What is the main reason of this?

Predation
Hunting
Destruction of habitat
Cutting down of forest

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Environmental Science
A high density of elephant population in an area can result in

Interspecific competition
Predation on one another
Intraspecific competition
mutualism

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