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Environmental Science

Environmental Science
Water used for paper mills should not contain

magnesium
chlorine
sodium
iron

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Environmental Science
Of the gases listed below, which is not believed to be responsible for enhancing the earth's greenhouse effect?

Methane (CH4)
Nitrous oxide (N2O)
Chlorofluorocarbons (CFCs)
Carbon dioxide (CO2)
Molecular oxygen (O2)

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Environmental Science
Which one of the following cycle is not a gaseous biogeochemical cycle in ecosystem?

Sulphur
Carbon
Nitrogen
Phosphorus

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Environmental Science
The lowest temperature that can be attained by evaporating water into the air is known as the:

Minimum temperature
Wet-bulb temperature
Heat index
Frost point
Wind chill temperature

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Environmental Science
The final stable community in an ecological succession is called the

final community
climax community
seral community
ultimate community

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Environmental Science
One atom of chlorine can destroy over __________ molecules of ozone.

10000
1000
25000
100000

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