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Environmental Science

Environmental Science
At any given time, ______ of the earth is illuminated by the sun.

One-fourth
Two-thirds
One-third
One-half

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Environmental Science
Man made sources of radiation pollution are:

explosion of nuclear weapons
all of these
nuclear fuels and preparation of radioactive isotopes
mining

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Environmental Science
Which chemical was responsible for Bhopal gas tragedy?

B & C
Benzene Hexa Chloride
Tri Nitro Toluene
Methyl Isocyanate

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Environmental Science
Sedimentation is a

Final process
Tertiary water treatment
Primary water treatment
Secondary water treatment

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Environmental Science
The most abundant gas in the stratosphere is:

Oxygen (O2)
Ozone (O3)
Chlorofluorocarbons (CFCs)
Nitrogen (N2)
Carbon dioxide (CO2)

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Environmental Science
Oil, coal and natural gas supply approximately __________ % of the energy used in the United States

25
10
40
81

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