The Water We Use — Unit test Answers

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Wetlands help to prevent flooding.

The total amount of water on Earth

is increasing.

is fairly constant.

is decreasing.

depends on the weather.

The salinity of ocean water is due to high concentrations of:

Potassium chloride

Sodium chloride

Sodium manganate

Sulfur chloride

Please select the word from the list that best fits the definition

gravity

high tide

low tide

moon

neap tide

spring tide

sun

tidal bore

tidal range

tides

Which of the following best describes the availability of freshwater on Earth?

Less than 1% of Earth’s water is liquid freshwater.

More than two thirds of Earth’s freshwater is stored in glaciers and icecaps.

99% of liquid freshwater on Earth is stored as groundwater.

All of the above.

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