The Berkeley Earth Team estimates that Earth's average temperature increased about ________ since the 1950s.
A. 0.5°C
B. 1.0°C
C. 5.0°C
D. 0.1°C
E. 2.0°C
Answer: B
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What is the approximate width of the Souris River floodplain?
The following questions are based on Map T-4, a portion of the “Voltaire, North Dakota” quadrangle (scale 1:24,000; contour interval 5 feet) and Figure 40-4, a stereogram of the same region showing the Souris River (48°06'23"N, 100°48'05"W). What will be an ideal response?
Where would you find a cold desert biome?
a) Mojave b) Sahara c) Sahel d) Antarctica
For the last 100 years, our primary energy source has been ________
A) fuel wood B) nuclear energy C) fossil fuels D) natural gas E) hydropower
Lead pollution is a problem because lead ________
A) will cause the ozone hole to increase B) causes central nervous system damage in humans C) can become attached to radon D) causes excess nutrification of waterways, resulting in eutrophication E) is a precious metal, and it is being lost to the atmosphere