Skin damage resulting from exposure to the Sun is cumulative; i.e., the skin never completely heals from previous sunburns
Indicate whether the statement is true or false
TRUE
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Explain why high elevations such as mountains are colder than sea-level locations
What will be an ideal response?
Geologists in the early 1900s concluded that heat flow through continents should be greater than heat flow through ocean floors. Evaluate this hypothesis
A) True. The granite of the continental crust contains more radioactive elements than the basalt of the ocean floor, so more heat is produced in continental crust. B) True. Continental crust is thicker than ocean crust, so more heat is produced in the thicker layer. C) False. The lithosphere is thinner beneath oceans than continents, so heat flows more easily up from the mantle. D) False. The basalt of the ocean floor has a better insulating quality than continental crust granite.
Suppose yesterday morning you noticed ice crystals (frost) on the grass, yet the minimum temperature reported in the newspaper was only 35°F. The most likely reason for this apparent discrepancy is that
a. ?temperature readings are taken in instrument shelters more than 5 feet above the ground. b. ?the thermometer was in error. c. ?the newspaper reported the wrong temperature. d. ?the thermometer was read before the minimum temperature was reached for that day. e. ?the thermometer was read incorrectly.
Calcified and salinized soils typically form in ____
a. arid and semiarid regions b. the middle latitudes c. the subarctic d. the rainforests