Lava is magma on the Earth's surface.
Answer the following statement true (T) or false (F)
True
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When human activities alter natural chemical cycles of elements, they most often do so by
A. increasing the capacity of the system for an element. B. increasing the rate of input of elements into the system. C. decreasing the capacity of the system for an element. D. changing one chemical element into another.
Which is a natural service provided by mountains to support agricultural activities?
A. clean water B. clean air C. biodiversity D. food
According to "dependency theory" the development and prosperity of the world's core was based on the ________ of the periphery
A) development B) underdevelopment C) backwardness D) traditionalism E) economic prosperity
All of the following are effects of U.S. federal price supports on agricultural products, EXCEPT
A) the market cannot arrive at an equilibrium price through its normal market mechanism. B) farmers grow a larger amount of surplus crops than consumers buy. C) buyers pay more than they would if market conditions prevailed. D) consumers' incomes are artificially raised by these agricultural price supports. E) farmers' incomes are artificially raised by government subsidies.