Semester 2, Earth Science - Unit 2, Assignment 21 - Test

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Evaporation _____.

adds water to the atmosphere

Desalination _____.

allows saltwater to be used for drinking

About 70% of Earth's freshwater is found in _____.

glaciers and ice caps

Which of the following materials is the least porous?

unsorted sand and rock

Letter A represents a wave's _____.

wavelength

Most lakes _____.

were formed from melting glaciers

Surface currents are driven by _____.

wind

Most freshwater is used _____.

for industry and electrical power

The salinity of the ocean is 35 ppt. The salinity of Lake Artemis is 12 ppt. The ocean has the same amount of salt as _______ salty than Lake Artemis.

is saltier than

The water table _____.

is the top of the saturated zone

Most of Earth's fresh surface water is found in _____.

lakes

Adhesion describes water's attraction to _____.

other substances

Choose all the answers that apply. As ocean depth increases, _____.

pressure increases temperature decreases density increases salinity increases

The oxygen side of a water molecule is _____.

slightly negative

Iorek lives near the North Pole. The snow in his backyard adds water to the atmosphere through _____.

sublimation

Choose all the answers that apply. Thermohaline circulation is driven by differences in _____.

temperature density salinity

The moon is the main cause of _____.

tides

El Niño is best described by which of the following situations?

unusually warm ocean temperatures

In Shoreville, the last low tide was at 12:00 a.m. About what time will the next high tide occur?

6:00 a.m.

The ocean's "global conveyor belt" is _____.

a deep ocean current

Water _____.

becomes less dense when it freezes

Confined aquifers are found _____.

between two layers of impermeable soil

The Coriolis effect _____.

causes surface currents to move in circular paths

Deep ocean water is ________surface ocean water.

colder than

The intensity of a hurricane is increased by the following factor(s). Select all that apply.

condensation created by water vapor increased wind speeds around the storm

Most of Earth's water _____.

contains salt

Ice floats because it's less ________ than water and because it displaces an equal mass of water there's no increase in sea level as it melts.

dense

Marvita lives near a river, but can't afford easy access to fresh water. She suffers from _________ scarcity.

economic


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