Trade winds are planetary winds that blow from the equatorial low pressure belt to the subtropical high pressure belt winds are deflected to their right in the Northern hemisphere and to the left in the southern hemisphere these winds bear moisture and they bring rainfall.

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The trade winds are the prevailing pattern of easterly surface windsfound in the tropics, within the lower portion of the Earth's atmosphere, in the lower section of the troposphere near the Earth's equator.
Trade Winds. In the Northern Hemisphere, warm air around the equator rises and flows north toward the pole. As the air moves away from the equator, the Coriolis effect deflects it toward the right. It cools and descends near 30 degrees North latitude.