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Chapter 9

True or False

True or False
Based on the information in the chapter, determine whether each of these statements is true or false.

This activity contains 12 questions.

	The hydrologic cycle operates across the entire surface of the planet, from several kilometers below ground level to several kilometers above it.    True  False

	As water evaporates from a lake surface, there is a release of latent heat to the lake, and a resulting increase in water temperature.    True  False

	Potential evapotranspiration is the amount of water that would evaporate and transpire under optimum conditions (i.e., if water were constantly available).    True  False

	Compared to an evaporation pan, a lysimeter is a simpler, but less accurate, device for determining potential evapotranspiration.    True  False

	The wilting point is the point at which the soil contains only hygroscopic water, which cannot be accessed by plant roots.    True  False

	As soil-moisture recharge removes soil water, plants must exert greater effort to extract the same amount of moisture.    True  False

	Permeability is the amount of pore space in soil.    True  False

	The zone of aeration is the part of the subsurface in which pores are not completely filled with water.    True  False

	The height to which water can rise without the aid of pumps is referred to as the potentiometric surface.    True  False

	A confined aquifer is less susceptible to surface pollution than is an unconfined aquifer.    True  False

	The pore spaces within aquifers can collapse as a result of prolonged overpumping, causing the ground above them to subside.    True  False

	Earth's largest known aquifer, the High Plains Aquifer, would require about 1000 years to recover from historic pumping if all groundwater mining stopped today.    True  False

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