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# Physical Science: Temperature, Climate, and Renewable Resources

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1. Explain how the temperature difference between the poles and the equator drives the motion of the oceans and atmosphere.
2. What are the differences between ice caps and glaciers?
3. How do ocean currents affect local climate?
4. Why do we call groundwater in most areas a "nonrenewable resource"?
5. What is the Gulf Stream?
6. What countries are directly affected by the path of the Gulf Stream?
7. Find out what kind of rock is below the soil in your town. How did you find out this information?
8. Give an example of an ecosystem near your home. Describe how energy flows through this ecosystem.
9. How many different trophic levels were represented in your last meal?
10. What is the ozone layer? Where is it located? Why is it important to life on Earth?
11. What steps would have to be taken to reduce the severity of the greenhouse effect?
12. Where do electric cars obtain their energy? Is it true they do not generate pollution because they have batteries?

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The expert examines temperature, climates and renewable resources.

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Solutions to Physical Science Question
1. Explain how the temperature difference between the poles and the equator drives the motion of the oceans and atmosphere.
Solution
Since cold air is denser than warm air, temperature differences give rise to atmospheric motions, and those motions work to eliminate the differences. Winds move warm, moist air upward and poleward from the tropical surface and move cold, dry air downward and toward the equator from higher altitudes and latitudes. The contrasts in heating, together with the winds, also drive ocean currents (as a result of differences in density), which help reduce temperature differences between the equator and the poles even more.
2. What are the differences between ice caps and glaciers?
Solution
Ice caps are thick layers of ice and snow that cover large areas of land. They are stagnant in nature (they do not move). Glaciers on the other hand are huge mass of ice slowly flowing over a land mass. Thus the difference between the two is that the bodies of ice in ice caps are stagnant while that of glaciers are in motion (they move).
3. How do ocean currents affect local climate?
Solution
Ocean currents affect local climate through energy heat transfer. Through heat transfer the cold currents cool off the warm ...

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