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Environmental Science

Environmental Science
The source of atmospheric oxygen is

Carbon Cycle
Green Plants
Water
Nitrogen cycle

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Environmental Science
Trophic levels are formed by

Organisms linked in food chain
only animals
Only plants
Only carnivorous

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Environmental Science
What are rodenticides?

That kill fishes
That kill crocos
That kill insects
That kill rats

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Environmental Science
On a clear, calm, night, the ground and air above cool mainly by this process:

Evaporation
Convection
Radiation
Conduction
Reflection

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Environmental Science
Salinization is ___________.

Accumulation of salts in water
Accumulation of salts in body
Accumulation of salts in soil
Accumulation of salts in animals

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Environmental Science
World's most problematic aquatic weed is

trapa
eichornia
wolffia
azolla

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MORE MCQ ON Environmental Science

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