As a source of energy, developed countries rely on ________ the most, while developing countries rely more heavily on ________
A) fossil fuels; nuclear power B) wood and other biofuels; fossil fuels
C) coal; oil and natural gas D) oil and natural gas; coal
D
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The Coriolis force is not very significant for masses that move short distances for short time periods
Indicate whether the statement is true or false
In North America the ________ air mass forms only in the summer
A) cT B) mT C) mP D) cP
Geographers Frank and Deborah Popper have proposed that in the future, much of the Great Plains should be taken out of agricultural production and instead used for what?
A) A separate homeland for Native Americans B) A huge grassland habitat for restored herds of buffalo C) To open the area up for the mining of oil from deep shale reserves D) For the development of wind farms
In the open ocean, Tsunamis travel at about the same speed as a commercial airliner
Indicate whether the statement is true or false