How do gasoline prices influence the energy efficiency of vehicles people purchase?
What will be an ideal response?
When prices are low, there is little incentive to purchase a fuel-efficient vehicle. As prices increase, fuel-efficient options account for a larger share of purchases.
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_________ organisms need no oxygen to survive. Fill in the blank(s) with the appropriate word(s)
When analyzing temperature anomaly data from a set of climate proxies you notice a change in temperatures over a 23,000 year cycle. Which natural climate change cycle is most likely responsible for such a change?
A. Tilt angle B. Precession C. Eccentricity D. None - all affect it at same rate.
The asthenosphere is the second layer of the Earth characterized by ________
A) hard rocks that break B) soft rocks that flow easily C) magma D) layers of both hard and soft rocks
The climates of the United States and Canada include the __________________ climate.
-desert Type B -tropical Type A -seasonal continental Type D -moderate/humid Type C -all of these are found in the region