Unit 4 Water, Weather, and Climate

• troposphere

• mesosphere

• exosphere

• stratosphere

What is the main source of groundwater?

• precipitation falling into man-made wells

• precipitation seeping through pores and cracks in the ground

• morning dew collecting on the surface of shrubs and grasses

• saltwater flowing into fault lines at the ocean floor

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• Land heats up much slower than the sea, so the air just above land rises up and is replaced by cooler air from above the sea.

• Land heats up much faster than the sea, so the air just above land rises up and is replaced by cooler air from above the sea.

• During the day, the air above the sea is warmer and less dense, so it moves toward land.

• During the day, the air above land is colder and denser, so it moves toward the sea

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• a delta

• a mountain

• a glacier

• a lake

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Global winds are found in each convection region. Because convection cells are in a set place in the atmosphere and the Earth is spinning on its axis, the winds appear to curve.

The apparent curving of the winds is called _______.

• The global wind effect

• atmospheric curving

• the Coriolis effect

• the Curvature effect

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Which following pairs of factors are most directly responsible for an increasing concentration of salt in the ocean?

• infiltration and delta formation

• condensation and sea breezes

• transpiration and weathering

• evaporation and iceberg formation

When ultraviolet rays from the Sun reach the upper layers of the atmosphere, they sometimes react with oxygen gas. This starts a process that can eventually produce ozone. In what way is this process beneficial to human life?

• Once ozone reaches the lower atmosphere, it is considered a pollutant.

• Ozone in the upper atmosphere is important for blocking charged particles from the Sun.

• Once ozone reaches the lower atmosphere, it becomes important for the processes of photosynthesis and respiration.

• Ozone in the upper atmosphere is important for blocking ultraviolet light from the Sun.

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• rivers

• water vapor

• lakes

• groundwater

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A weather front occurs when two air masses of differing temperatures meet. When a cold air mass meets a warm air mass, for example, what will happen to the warm air?

• It will sink.

• It will rise.

• nothing will happen.

• It will reverse directions.

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• hydrogen

• oxygen

• mass

• heat

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