英语作文,是关于雨是怎么来的,怎么形成的的一英语作文最少得有200个单词,做多不要超过300词,

英语作文,是关于雨是怎么来的,怎么形成的的一英语作文最少得有200个单词,做多不要超过300词,
英语作文,是关于雨是怎么来的,怎么形成的的一英语作文
最少得有200个单词,做多不要超过300词,

英语作文,是关于雨是怎么来的,怎么形成的的一英语作文最少得有200个单词,做多不要超过300词,
What makes it rain?
When water becomes warm enough,it evaporates as vapor into the air.When a mass of air quickly cools to its saturation point,the water vapor condenses into clusters of tiny water droplets and frozen water crystals.We call these clusters clouds.Over time,the droplets and crystals that make up a cloud can attract more water to themselves.When water droplets grow heavy enough,gravity pulls them down as raindrops.If the air is cold enough,the ice crystals can remain frozen and grow large enough to fall as snow,sleet,freezing rain or hail.
Raining is earth's natural phnomenon.Hot air evaporate steam up the sky,just like the above process and make cloud and when meets with the cold air,which makes the evaporated steam changes into water drops and fall down onto Earth again.It repeated again and again for thousands of years.So this is rain.
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In the cloud, cloud droplets are small water droplets. They continue to rely mainly on condensation and collisions compounded. Therefore, in the cloud droplets, aiming to increase the size of the rain...

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In the cloud, cloud droplets are small water droplets. They continue to rely mainly on condensation and collisions compounded. Therefore, in the cloud droplets, aiming to increase the size of the rain, first of all need a very thick cloud, dense cloud droplets, moisture content, so, it can continue to grow condensation; secondly, in Shuiyun also requires the presence of strong vertical motion, so in order to increase the number of collision and the machine will. In relatively thin and relatively stable Shui-yun, cloud droplets do not have enough condensation and combined growth opportunity, can cause cloudy, cloudy, the Congress does not rain. In different kinds of clouds, the cloud droplet size distribution is different, resulting in cloud droplet size uneven reason is around in the air and moisture transfer of cloud droplets evaporate. The cloud droplet growth factor is the setting process and the collision and process, only to condense in the circumstances, the size of the cloud droplets are uniform, but because of the added water vapor, so that some increase in cloud droplets, and together with the and the results, so that the larger cloud droplets continue to grow into big raindrops. Suffer the effect of gravity raindrop falling, when updraft, will have an upward force in rain, make its slow down, and a little rain may also be brought up. Only when the rain increased to a certain extent, to fall to the ground, the formation of rain.

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