Earth Science - QUIZ 2

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How much of Earth's freshwater is found underground

30%

Which of the following statements is true

The Arctic ice cap floats on top of the Arctic Ocean.

Melinda lives in a larger, U-shaped valley. It was most likely formed by _____

a glacier

A watershed is _____

an area where all draining water goes into the same river system

Lakes _____

are recharged by precipitation

Rivers _____

change the landscape through erosion

In landlocked lakes, water is discharged primarily through _____

evaporation

Glaciers _____

form when snow compresses into ice

About 70% of Earth's freshwater is _____

frozen in glaciers and ice caps

Most lakes were formed from _____

melting glaciers

How freely water moves into and through soil or rock is called _____

porosity

Which of the following soil samples is the least porous? Click on the picture until it shows the correct answer

the picture with sediment inbetween the rocks

The water table is _____

the top layer of the saturated zone

Global warming _____

threatens polar ecosystems

Which of the following materials is most porous

unsorted sand and rock


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