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الأربعاء، 9 أبريل 2014

موضوع تعبير باللغة الانجليزية عن Tropical cyclone الإعصَارُ الإسْتِوائِيّ

Tropical cyclone or hurricane is a circular air movement over the warm ocean waters in the warm part of Earth near the equator. Most tropical cyclones create strong winds and heavy rains. While some tropical cyclones stay out in the sea, others pass over land, which can be dangerous because they can cause a lot of damage.



Hurricane Rita 24 hours after its peak intensity
Tropical cyclones form when warm, moist ocean air rises. They begin as a group of storm winds when the water gets as hot as 80 degrees F (27 C) or hotter. The Coriolis effect causes the winds to rotate. They usually move westward in the tropics, and later move north or south into the temperate zone. Tropical cyclones that form in the Atlantic are called "hurricanes". Those in Pacific are called "typhoons", and in the Indian Ocean they are called "cyclones".

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