How natural wind happens

Wind is caused by air moving from an area with high pressure into areas with low pressure.

When rain is approaching, the air pressure is low. As there is a big difference of air pressure between areas that are going to rain and areas that are not, strong winds (from non-raining areas) happens.

If strong enough winds from different areas collide with each other, a hurricane is formed. A tornado is caused by warm air from land at sea. However the effects of both are the same: they cause destruction. The former commonly occurs in areas with large open fields. The latter is caused by warm weather that could be attributed by global warming.

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