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Environmental Science

Environmental Science
Which of the following processes acts to remove carbon dioxide from the atmosphere?

Burning fossil fuels
Lightning
Deforestation
Photosynthesis

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Environmental Science
The heat energy released when water vapour changes to a liquid is called:

Latent heat of fission
Latent heat of fusion
Latent heat of condensation
Latent heat of evaporation

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

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

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Environmental Science
The undesirable change in physical, chemical or biological characteristics of air, land and water is referred as

Ecodestructions
Pollutants
All of these
Pollution

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Environmental Science
The major pollutant from automobile exhaust is

Soot
CO
SO2
NO

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Environmental Science
Water used for paper mills should not contain

magnesium
iron
sodium
chlorine

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