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