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Environmental Science

Environmental Science
Which of the following zones in a lake suffers from lack of light and therefore limited photosynthesis is able to take place?

Profundal
Pelagic
Littoral
Euphotic

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Environmental Science
The first global environmental protection treaty "The Montreal Protocol" was signed on September 26 in

1985
1981
1990
1987

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Environmental Science
Heavy dust can cause

closure of stomata
browning of leaves
leaf blights
opening of stomata

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Environmental Science
Which phytoplankton exists at the size of 60 micro metre?

Nanoplankton
Ultraplankton
Picoplankton
Net plankton

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Environmental Science
Which one of the following is not a primary pollutant?

Particulate matter
Carbon monoxide
Nitrogen oxides
Sulpuric acid

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Environmental Science
Suppose last night was clear and calm. Tonight low clouds will be present. From this you would conclude that tonight's minimum temperature will be:

The same as last night's minimum temperature
Higher than last night's minimum temperature
Above freezing
Lower than last night's minimum temperature

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