Which of the following would most likely have the greatest impact on the ocean conveyor system in the Atlantic Ocean?
A) Doubling the size of the Panama Canal
B) Increased volcanic activities in the Pacific Ocean
C) Complete melting of the polar ice cap
D) Doubling the number of ships that cross from North America to Europe using fossil fuels
C
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How do existing nuclear power plants produce electricity?
A. Nuclear fission is used to heat water until it boils generating steam that spins a turbine. B. The blast from a nuclear bomb is used to turn wind turbines. C. Nuclear fission is used to melt salt that converts chemical energy to electricity. D. Nuclear fusion is used to heat water until it boils generating steam that spins a turbine.
In 2007, the Intergovernmental Panel on Climate Change concluded that human activities are the primary cause of recent global warming
Indicate whether the statement is true or false
Shrink-swell potential of a soil is dependent upon
A) the hydraulic conductivity of the soil B) the proportion of clay in the soil C) the proportion of fine sand in the soil D) the chemistry and water content of the soil
Which of the following is used to define lipids?
A) the presence of a specific functional group B) their chemical structure C) their insolubility in water D) none of these