When and why did the U.S. government introduce tax incentives to subsidize solar energy?
A) the 1930s, as a way to employ people during the Great Depression
B) the 1940s, to harness new energy sources during World War II
C) the 1970s, when the Arab oil embargo took place
D) the first decade of the 2000s, as a response to the BP oil spill in the Gulf of Mexico
E) first decade of the 2000s, with President Obama's new energy plan
C
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Which group of chemicals can cause birth defects?
A. teratogens B. mutagens C. carcinogens D. neurotoxins
What happens to the circles in the Mercator projection (and, therefore, to the landmasses) as latitude increases? What causes this distortion of the circles away from the equator? (Hint: Compare parallels and meridians with those on the globe.)
What will be an ideal response?
The levels of mercury are low in the fish eaten almost daily by people living near an ocean. For these people, bioaccumulation means that
A) people eliminate most of the mercury they consume after a single day. B) mercury builds up in the fish and not the people. C) mercury has been accumulating in their bodies for many years. D) mercury and other heavy metals accumulate in the bottom of the ocean and not in the fish they eat.
Which of the following locations would best represent a storm track characterized as bringing cold moist air to inland Canada?
A. A B. B C. C D. D E. E