Earth Science - QUIZ 2
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