OBJECTIVE LIFE SCIENCE
ECOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which best explains why runoff is important?
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It returns water to other locations on Earth
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It increases the chance of flooding
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It makes evaporation occur faster
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It increases condensation
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Explanation:
Detailed explanation-1: -Only about a third of the precipitation that falls over land runs off into streams and rivers and is returned to the oceans. The other two-thirds is evaporated, transpired, or soaks (infiltrates) into groundwater. Surface runoff can also be diverted by humans for their own uses.
Detailed explanation-2: -Surface runoff occurs whenever the soil is saturated with water and cannot absorb any more moisture, such as during a flash flood or rapid snow melt. Surface runoff also occurs when water settles on impervious surfaces, such as concrete driveways and asphalt covered roads, before flowing into storm sewers.
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