The Sun gets much of the credit for creating both wind and rain. When the Sun warms air in a specific location, that air rises, creating an area of low pressure. More air rushes in from surrounding areas to fill the void, creating wind. Without the Sun, there wouldnt be wind. There also might not be breathable air at all.
Water and Fire
The Sun has a huge effecton our water. It warms the oceans around the tropics, and its absence cools the water around the poles. Because of this, ocean currents move large amounts of warm and cold water, drastically affecting the weather and
climate around the world. The Sun also drives the water cycle, which moves about 18,757 cubic miles of water vapor through the atmosphere every year.
If youve ever gotten out of a swimming pool on a hot day and realized a few minutes later that you were dry again, you have firsthand experience with evaporation. If youve seen water form on the side of a cold drink, youve seen condensation in
action. These are primary components of the water cycle, also called the hydrologic cycle, which exchanges moisture between bodies of water and land masses. The water cycle is responsible for clouds and rain as well as our supply of drinking water.
注意:此部分试题请在答题卡1上作答;8-10题在答题卡1上。
1. How many Earths could fit inside the Sun?
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