1. Unit 4 CDA Review Answers

2. A____ forms from a rapidly rotating funnel cloud.
Tornado
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3. Explain why the Polar Regions experience great differences in daylight and weather as the seasons change?
The tilt of the Earth’s axis means that the poles move closer and farther from the sun.
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4. How can cooler temperatures cause windy conditions?
Cooler temperatures cause the air to contract and sink. This allows warmer air to rise above it.
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5. How does earth rotating on its axis affect winds?
It causes winds to curve rather than go in a straight line.
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6. Once a hurricane hits land area, what cause it to lose energy?
The lack of moisture and change in temperature as it comes from the ocean onto the land.
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7. What are the effects of a hurricane?
Hurricanes are last longer, larger in size, and generate more rainfall than tornadoes.
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8. the tilt of the Earth’s Axis
What causes seasons?
the tilt of the Earth’s Axis
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9. the amount of water vapor in the air
What is humidity?
the amount of water vapor in the air
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10. thermal energy from the sun that heats the Earth’s surface
What is radiation?
thermal energy from the sun that heats the Earth’s surface
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11. What is the main cause of air movement around Earth?
Differences in temperature
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12. What is the MAIN difference between climate and weather?
Climate describes the conditions of a large area over a long period of time. Weather is the conditions of the area for a shorter period of time.
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13. What is the name for the boundary between two air masses of differing temperature, air pressure, and humidity?
A front
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14. What type of front would cause severe thunderstorm to form in your area?
A cold front
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15. It causes a front to form.
What will most likely happen when a large low-pressure air mass meets a large high-pressure air mass?
It causes a front to form.
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16. What would cause a hurricane to follow one path and then suddenly track in another direction?
Global winds cause hurricanes to change their paths once they hit land.
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17. Which combination of properties describes cold air?
High density and high pressure
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18. the uneven heating and cooling of the land and water
Which of these is the most common cause of ocean breezes in coastal areas?
the uneven heating and cooling of the land and water
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19. The angle of sunlight is the same throughout the year at the equator.
Why are temperatures nearly the same throughout the year at the equator?
The angle of sunlight is the same throughout the year at the equator.
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20. Why do areas in the middle of a large continent generally have more extreme differences in temperature than areas near the coastline?
Oceans change temperatures slowly and regulate the temperature of nearby land.
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21. Why do hurricanes usually start over oceans near the equator?
The air is warm and moist.
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