لماذا تعد مياه الامطار المصدر الرئيسي للمياه على سطح الارض

The main source of water on Earth is rain, which is part of the Earth’s water cycle. The cycle begins with water from the oceans evaporating due to the sun’s rays. The evaporated water forms clouds, which then transform under natural processes and fall as rain or snow. This precipitation is the main source of water on the Earth’s surface.