Environmental Science - Study Mode

[#276] As the air temperature increases, with no addition of water vapor to the air, the dew point will:
Correct Answer

(A) Remain the same

Explanation

Solution: As the air temperature increases, with no addition of water vapor to the air, the dew point will remain the same.

[#277] As the air temperature increases, with no addition of water vapour to the air, the relative humidity will:
Correct Answer

(D) Increase until it becomes equal to the dew point temperature

Explanation

Solution: As air is cooled and no moisture is added, the relative humidity will increase until the air reaches saturation (100% RH). The temperature of the air when this occurs is called the dew point temperature.

[#278] Green House effect is caused by
Correct Answer

(A) Increase in CO 2

Explanation

Solution: Greenhouse effect, a warming of Earth's surface and troposphere (the lowest layer of the atmosphere) caused by the presence of water vapour, carbon dioxide, methane, and certain other gases in the air. Of those gases, known as greenhouse gases, water vapour has the largest effect.

[#279] If the air temperature remains constant, evaporating water into the air will ____ the dew point and ____ the relative humidity.
Correct Answer

(A) Increase, increase

Explanation

Solution: If the air temperature remains constant, evaporating water into the air will increase the dew point and increase the relative humidity.

[#280] If the earth's average surface temperature were to increase, the amount of radiation emitted from the earth's surface would ____, and the wavelength of peak emission would shift toward ____ wavelengths.
Correct Answer

(A) Increase, shorter

Explanation

Solution: If the earth's average surface temperature were to increase, the amount of radiation emitted from the earth's surface would increase, and the wavelength of peak emission would shift toward shorter wavelengths.