What human activities happening tens or hundreds of kilometers from a coast can still end up affecting the shoreline sediment budget?
What will be an ideal response?
Land use in the drainage basin of a stream that delivers sediment to the coast will affect the shoreline sediment budget. Agriculture, mining, timber harvesting, or urbanization typically increase sediment loads to streams so that there are potential gains in the shoreline sediment budget. This effect is counteracted, however, where dams trap sediment in reservoirs and decrease the shoreline sediment budget compared to natural conditions. Increases in sediment budget tend to cause enlargement of beaches whereas decreases cause loss of beaches by wave and current erosion.
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Most of the world's cities are not self-sustaining systems.
Answer the following statement true (T) or false (F)
What was the mistaken calculation made by Ptolemy that contributed to the "discovery" of the New World by Christopher Columbus?
a. Current movements b. Size of the Atlantic Ocean c. Shape of Earth d. Longitude lines e. Circumference of Earth
According to the 1986 Immigration Reform and Control Act, undocumented immigrants were
A) permitted to become legal residents by participating in an application process. B) automatically transformed into U.S. citizens in a blanket "amnesty." C) encouraged to remain in Mexico because of shortages of workers. D) no longer eligible for public services in the United States. E) established as guest workers following the German model.
Which of the following forms of radiation is identical to the nucleus of a helium atom?
A) a