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Environmental Science

Environmental Science
Species that occur in different geographical regions separated by special barrier are:

None of these
Sibling
Sympatric
Allopatric

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Environmental Science
Phytoplankton are

Producers of forest
Producers of lakes
Consumers of Ocean
Omnivores

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Environmental Science
Without the atmospheric greenhouse effect, the average surface temperature would be:

Much more variable than it is now
The same as it is now
Higher than at present
Lower than at present

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Environmental Science
CFC releases a chemical which is harmful to ozone is

SO2
N2O
chlorine
fluorine

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Environmental Science
Which of the following groups is absolutely essential functional component of the ecosystem?

Detritivores
Producers and herbivores
Producers and detritivores
Producers

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Environmental Science
North American grassland are called

Savannah
None
Prairies
Pampas

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