Unit 4 (The Water Cycle) - EQ2 Where can water be found, and how much is potable?
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- Q1
Most of the earth's surface is covered with
frozen water
salt water
aquifers
freshwater
60s - Q2
About 3% of the water on Earth is freshwater. Only about 40% of that freshwater is available for human use. Why is so much freshwater unavailable for human use?
It is frozen.
It is in aquifers.
It is salt water.
It is polluted.
60s - Q3
Water on Earth is either freshwater or saltwater. What is the percent ratio of freshwater to percent saltwater on Earth?
Users link answersLinking60s - Q4
The circulation of the earth's water, in which water evaporates from the sea into the atmosphere, where it condenses and falls as rain or snow, returning to the sea by rivers or returning to the atmosphere by evapo-transpiration is called the...
precipitation cycle
water cycle
aquifer cycle
infiltration cycle
60s - Q5
Match the following:
Users link answersLinking120s - Q6
The diagram shows the distribution of water on the Earth. Based on the diagram, which is true?
Most of Earth's fresh water is contained in the oceans.
Most of Earth's water is fresh water.
Most of Earth's water is contained in glaciers.
Most of Earth's fresh water is contained in glaciers and ground water.
120s - Q7
The graphic shows that only 3% of the Earth's water is fresh water. The graphic also shows that of this 3%, almost all of it is contained in two reservoirs. What are the two reservoirs that contain almost all of Earth's fresh water?
marshes and swamps
lakes and rivers
streams and estuaries
glaciers and groundwater
120s - Q8
Look closely at the map of the watershed below. If water enters the watershed at the top of the mountain where the arrow is pointing, at which point will it stop draining?
Point D
Point A
Point C
Point B
120s - Q9
What definition BEST describes a watershed?
An area where aquatic plants and animals thrive
An area where water infiltrates the soil
An area where snow melts and changes into liquid water
An area that collects precipitation and drains it to the lowest point
60s - Q10
Which of the following is NOT a criterion for water to be considered potable?
It must have low levels of dissolved substances
It must have a pH between 6.5 and 8.5
It must not contain harmful microorganisms
It must contain only H2O molecules
60s - Q11
This table shows sizes of Earth's oceans. Based on this table and the makeup of Earth's total water, which reasonable conclusion can be made?
Earth's seas contain more salt water than the oceans.
Earth's largest source of salt water is the Pacific Ocean.
Earth's land has more surface area than Earth's oceans.
The Pacific Ocean is larger than all other oceans combined
60s - Q12
97.5% of all the water on Earth is salt water. Fresh water is distributed on Earth as seen in the bar graph above. What can we say about MOST of the freshwater on Earth?
We cannot use most of it because it is frozen.
Most of the water is easy to find and use.
Most of the freshwater is home to animals and plants.
We must drill wells to use it because it is underground.
60s
