Environmental Science
In a volume of air near the earth's surface, ____ occupies 78 percent and ____ nearly 21 percent.

Nitrogen, water vapor
Hydrogen, helium
Oxygen, hydrogen
Nitrogen, oxygen
Hydrogen, oxygen

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Environmental Science
When the air is saturated, which of the following statements is not correct?

The wet bulb temperature equals the dew point temperature
The relative humidity is 100 percent
The air temperature equals the dew point temperature
The air temperature equals the wet-bulb temperature
An increase in temperature will cause condensation to occur

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Environmental Science
A term biotype means

all individuals having same genotype
all individual with different phenotype
all individuals with different genotype
all individuals having same phenotype

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