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Environmental Science

Environmental Science
The range of normal human hearing is in the range of

50Hz to 15000 Hz
10 Hz to 80 Hz
50 Hz to 80 Hz
15000 Hz and above

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Environmental Science
The 3 R principle in waste management involves

Reduce, Regain, Reuse
Reduce, Reuse, Recycle
Reduce, Retain, Regain
Reduce, Reform, Reset

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Environmental Science
Atmospheric ozone layer which protect us from UV-B and C is getting depleted most by addition of

chlorofluorocarbon
sulpur dioxide
carbon monoxide
carbon dioxide

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Environmental Science
Which country contains about 50% of the world's coal resources?

United States
Canada
China
The former Soviet Union

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Environmental Science
Plants that grow in saline water-logged habitat are called

xerophytes
mangroves
mesophytes
halophytes

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Environmental Science
As the air temperature increases, with no addition of water vapour to the air, the relative humidity will:

Increase
Decrease
Remain the same
Increase until it becomes equal to the dew point temperature

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