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Environmental Science

Environmental Science
Air pollution can be of

natural origin
b only
artificial or man made origin
both a and b

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Environmental Science
The limitating factor in temperate and boreal forest is

Oxygen
Sunlight
Frost
Nutrients

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Environmental Science
How much radiant energy will an object emit if its temperature is at absolute zero?

Depends on the chemical composition of the object
None
The same as it would at any other temperature
The maximum theoretical amount

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Environmental Science
Pencillium does not swallow the growth of bacterium Staphylococcus. This sort of relationship is called

mutualism
predation
commensalism
amensalism

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Environmental Science
Study of inter-relationship between organisms and their environment is

Ecosystem
Ethology
Ecology
Phytogeography

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Environmental Science
Freshwater protozoans react to a/an __________ environment by removing water through _______

hypotonic, turgor pressure
hypertonic, a contractile vacuole
hypotonic, a contractile vacuole
isotonic, a contractile vacuole

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