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How much of Earth’s surface is water?
a. 1/3 b. ½ c. ¾ d. 7/8
What is ….c
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2
True/False
Oceans are salty, and fresh water is not.
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What is ….true
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True/False
Air pressure is higher at the top of the mountain.
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What is ….false
4
Why is the Baltic Sea less salty than other seas?
a. Many rivers flow into the Baltic Sea.
b. Deserts surround the Baltic Sea.
c. Water travels very quickly through the Baltic Sea.
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What is ….a
1
What powers the water cycle that makes fresh water from the ocean?
a. Lakes and river
b. Rain
c. Clouds
d. Sun’s energy
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What is ….d
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True/False
When moist air rises, the moist air cools, and the water vapor condenses into clouds.
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What is ….true
3
What is condensation?
a. Rain becoming water vapor as it warms
b. Water vapor becoming liquid water as it cools
c. Rain becoming ice when it cools
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What is …b.
4
Where does most of the salt in ocean water come from?
a. Soils
b. Rain and rocks
c. Soils and rocks
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What is ….c
1
What is evaporation?
a. It is a huge body of air that has nearly the same temperature and humidity.
b. It is the changing of liquid water into water vapor.
c. It is the amount of water vapor in the air.
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What is ….b
2
Which of these will measure air pressure?
a. Barometer b. Condensation
c. anemometer
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What is ….a
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What is humidity?
a. How strong the wind is
b. Whether air pressure is rising or falling
c. The amount of water vapor in the air
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What is ….c
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True/false
You often see clouds along a cold front because cold air moves above the warm air to form clouds.
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What is ….false
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True/False
Clouds are classified by their shape, size, and color.
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What is ….true
2
In which way are greenhouse gases beneficial?
a. They help keep the Earth warm.
b. They may cause the polar ice caps to melt.
c. They have caused global changes in temperature.
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What is ….a
3
True/false
Warm air moves over the top of cold air at a warm front because cold air is more dense than warm air.
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What is ….true
4
True/False
A wind vane measures air pressure.
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What is ….false
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What is ….
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What is ….
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What is ….
4
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What is ….