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Environmental Science

Environmental Science
Commonly used radioactive isotopes in scientific research

14 C
32 P
125 I
all of these

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Environmental Science
Air pollution is likely to be most severe

in the summer
when the atmosphere is turbulent
near the center of an anticyclone
in the interior of continents

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Environmental Science
A high Biological Oxygen Demand (BOD) indicates that:

absence of microbial action
High level of microbial pollution
water is pure
Low level of microbial pollution

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Environmental Science
Organisms having the potential for interbreeding and producing fertile offspring is called

Genus
Order
Species
Class

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Environmental Science
When the air temperature is below freezing, the saturation vapour pressure over water is .

Equal to zero
Greater than the saturation vapour pressure over ice
Equal to the saturation vapour pressure over ice
Less than the saturation vapour pressure over ice

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Environmental Science
Which of the following weather elements always decreases as we climb upward in the atmosphere?

Temperature
Wind
All of these
Moisture
Pressure

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