The most abundant greenhouse gas in Earth's atmosphere is
A) water vapor (H2O) B) nitrous oxide (N2O)
C) methane (CH4 ) D) carbon dioxide (CO2 )
A
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There is currently ________ evidence to indicate that the increase in Atlantic tropical storms and hurricanes is due to a longer-term trend in sea surface temperatures
A) little, if any B) increasing amounts of C) much D) overwhelming
Which of the following is incorrect regarding the spatial variability of net primary productivity?
A) At temperate and high latitudes, the rate of carbon fixing is seasonally variable. B) Productivity rates are constantly high throughout the year in the tropics. C) Net primary productivity is highest in the fall and winter in temperate and high latitude areas. D) Productivity rates in deserts is much less than that of tropical regions.
Wave refraction:
a. is the suspension of sediment by a breaking wave. b. is caused by swash and backwash. c. occurs because of rip currents. d. occurs in the offshore zone. e. causes erosion of headlands and deposition in embayments.
Permeability refers to the soil's capacity to store water
a. True b. False Indicate whether the statement is true or false