EARTH SCIENCE
GROUNDWATER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Groundwater is the largest freshwater source on Earth.
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Groundwater is freshwater beneath Earth’s surface.
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Groundwater is the largest liquid freshwater source for humans.
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Groundwater can maintain streamflow during times of drought.
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Detailed explanation-1: -Answer and Explanation: Of the following, the statement about groundwater that is not true is underground aquifers holding about 99% of all liquid fresh water. About 30% of freshwater is stored in aquifers.
Detailed explanation-2: -US and Canadian researchers recently calculated the total amount of the world’s groundwater and estimated that it is equivalent to a lake 180 metres deep covering the entire Earth. This makes groundwater the largest active freshwater resource on the planet.
Detailed explanation-3: -Fresh Water Around the World The Antarctic ice sheet holds about 90 percent of the fresh water that exists on the Earth’s surface. The ice sheet covers approximately 8.7 million square miles. The Greenland ice sheet also contains large volumes of fresh water.
Detailed explanation-4: -Rainwater is the main source of groundwater. Rainwater recharges the groundwater through the process of the water cycle.