Climate models predict that, as the world continues to warm, sea-surface temperatures in the tropics will rise. This may in turn ____
A) increase global circulation
B) increase the amount of time between hurricane formations
C) increase the strength of hurricanes
D) decrease the strength of hurricanes
C
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What is a reason why urbanization is increasing in South Asia?
A) widespread rural famines forcing people to migrate into cities B) a higher fertility rate in urban areas C) official government policies that encourage city growth (such as financial relocation assistance) D) better economic opportunities in the cities E) changes in the economics of agriculture resulting in greater mechanization
The formation of protons over neutrons (thus producing about a 7:1. ratio) was favored in the early universe because
A) it takes more energy to create a neutron from a proton than a proton from a neutron. B) it takes more energy to create a proton from a neutron than a neutron from a proton. C) the more massive neutrons made better targets for nucleon collisions. D) the positively charged protons were repelled away from the explosion.
Which of the three modern global change problems discussed in this chapter-- global warming, ozone depletion, or loss of biodiversity--do you consider to be the most serious?
Give reasons for your answer. If you wish, include information drawn from other sources. What will be an ideal response?
The fundamental cause of weather is the
A) large heat capacity of water vapor. B) differing amounts of solar radiation at different places on Earth's surface. C) horizontal and vertical movements of air parcels. D) gain and loss of heat from the world's oceans. E) ability of carbon dioxide to absorb infrared radiation.