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Environmental Science

Environmental Science
The top layer of the lake is called as

Thermonion
Thermocline
Epilimnion
Hypolimnion

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Environmental Science
The darkening of the skin due to arsenic poisoning is called

None of these
Diffuse melanosis
Skin scaling
Black syndrome

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Environmental Science
Two-thirds of the world's known oil reserves are located in

Indonesia
The middle east
Gulf of mexico and caribbean
Siberia

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Environmental Science
All the statements are correct regarding ecological succession except

The food chain relationships becomes more complex
The role of decomposers becomes more and more important
Species diversity increases as succession proceeds
It is a random process

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Environmental Science
Air is composed of gases, water vapours and

rainfall
light
dust particles
snowfall

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Environmental Science
Which of the following gases has role an important in maintaining atmospheric temperature?

Oxygen
Carbon dioxide
Nitrogen
Argon

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