Compared to carbon dioxide, methane is ____.
A. a weaker greenhouse gas
B. poisonous
C. much more common in the atmosphere
D. much less common in natural gas
E. a more potent greenhouse gas
Answer: E
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From this cross section of the Grand Canyon, what occurred between the formation of the Precambrian metamorphic rocks and the deposition of the lowest Paleozoic rocks?
A) Uplift
B) Erosion
C) Deposition and tilting of the Precambrian sedimentary and igneous rocks
D) Uplift and erosion
E) All of these are correct.
Which of the following is a major conflict over the use of federally owned land?
A. The kinds of uses that are excluded. B. The large amount of money the federal government earns from the land. C. The taxes people pay to manage the land. D. None of these is an issue.
At the 2009 Copenhagen climate conference,
A) more than 180 nations signed non-binding GHG reduction pledges. B) binding resolutions were signed by all attending nations. C) timetables were agreed upon for GHG reductions. D) most nations boycotted the meetings under pressure from fossil fuel companies.
The rougher a surface, the higher its albedo
Indicate whether the statement is true or false