Ocean current are
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Factors responsible for ocean currents:
- Earth rotation from west to east . It leads to North equatorial current and south equatorial current moving from east to west.
- Coriolis force : the force drift the movement of current in clockwise direction in northern hemisphere and anticlockwise in SH.
- Frictional drag of planetary winds, rate of evaporation , heating by solar energy.
- Temperature, salinity , density variation also impact the generation of oceanic current.
- Apart from these, gravity tends to pull the pilled water down and create gradation.
Effect of ocean currents:
- Snow free ports( example ??)
- More rains by the increase moisture intake of westerlies.
- Meeting ground of hot and cold current -fishing ground( example??)
- Desiccating affect of cold current- desert.
( Draw world map, and list down various currents)
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