The eruption of molten rock material from Earth's subsurface to the exterior is called volcanism
a. True
b. False
Indicate whether the statement is true or false
True
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Carcinogens may be difficult to identify and study because ________
A) cancer may be caused by chronic, long-term exposure B) there is no way to measure the carcinogenic potential of a substance C) they are rare in nature D) they are the least common of the toxic substances
As an object cools, the wavelengths of its maximum radiation shorten
Indicate whether the statement is true or false
Which of the following currents is responsible for Peru becoming the largest producer of fish, from the sea, in the world?
A) Brazil Current B) Canary Current C) Falkland Current D) Humboldt Current E) Somali Current
Precipitation and evaporation are two components of ________
A) the lithosphere B) Earth's energy budget C) the heterosphere D) the cycle of sublimation E) the hydrologic cycle