Environmental Science - Study Mode
[#361] At which city might you be able to observe cirrus clouds at an altitude of 3,000 m (10,000 feet) above the surface?
Correct Answer
(A) Barrow, Alaska
Explanation
Solution: At Barrow, Alaska one would be able to observe cirrus clouds at an altitude of 3,000 m (10,000 feet) above the surface.
[#362] Nitrogen gas returns to the atmosphere by the action of
Correct Answer
(B) Denitrifying bacteria
Explanation
Solution: Nitrogen gas returns to the atmosphere by the action of denitrifying bacteria.
[#363] The most abundant gases in the earth's atmosphere by volume are:
Correct Answer
(C) Nitrogen and oxygen
Explanation
Solution: The atmosphere contains many gases, most in small amounts, including some pollutants and greenhouse gases. The most abundant gas in the atmosphere is nitrogen, with oxygen second. Argon, an inert gas, is the third most abundant gas in the atmosphere.
[#364] Cigarette smoking exposes one to __________
Correct Answer
(D) Carbon monoxide
Explanation
Solution: Cigarette smoking exposes one to carbon monoxide.
[#365] Of the gases listed below, which is not believed to be responsible for enhancing the earth's greenhouse effect?
Correct Answer
(B) Molecular oxygen (O 2 )
Explanation
Solution: Molecular oxygen (O 2 ) is not believed to be responsible for enhancing the earth's greenhouse effect.