The two major types of energy are ____.
A. chemical or physical
B. kinetic or mechanical
C. potential or mechanical
D. potential or kinetic
E. chemical or kinetic
Answer: D
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"Cap and trade" is a system that ________
A) has been repealed by Congress as useless in diminishing pollution B) permits industries that pollute at levels below the federal cap to sell credits to industries that pollute at levels above the cap C) specifies a certain cap on industrial pollutants that can be traded to other nations D) allows industries to set their own caps for pollution emission so trading can continue
Oil price history shows that prices have changed sharply on several occasions. Which is NOT an event that led to a sharp fluctuation in barrel price?
A) OPEC refused to sell oil to allies of Israel in 1973. B) The end of the Iran-Iraq war in 1988 led to lower prices. C) Oil companies control supply of oil in Southwest Asia in the early 70s keeping prices low. D) The U.S. government removes all subsidies in 1980 to major oil companies like Exxon-Mobil causing an increased prices. E) The Iranian Revolution in 1979 and Iran-Iraq war trigger oil shortages and higher prices.
Why do tropical rains forests have so much biodiversity?
A. high degree of specialization B. low degree of specialization C. dense canopy D. nutrient-poor soils
A magnetic disturbance on the Sun's surface is called
A) a sunspot. B) an aurora. C) the solar wind. D) the electromagnetic spectrum. E) a magnetospheric cyclone.