Consider the following factors:1. Rotation of the Earth2. Air pressure and wind3. Density of ocean water4. Revolution of the EarthWhich of the above factors influence the ocean currents?
✓ Correct answer: b) 1, 2 and 3
ExplanationThe Earth’s rotation affects ocean currents through the Coriolis effect, which causes moving fluids like air and water to be deflected to the right in the Northern Hemisphere and to the left in the Southern Hemisphere.This deflection influences the direction of ocean currents.Option 2 is correct : Wind patterns which are driven by differences in air pressure, are primary drivers of surface ocean currents.The friction between the wind and the ocean surface pushes water, creating currents.Option 3 is correct : Differences in water density, which are caused by variations in salinity and temperature, influence vertical ocean currents.Cold water is denser and tends to sink, while warm water is lighter and tends to rise.This process contributes to the thermohaline circulation.Option 4 is incorrect : The revolution of the Earth does not directly influence ocean currents.While the revolution of Earth impacts seasons and sunlight distribution, it is not a direct cause of ocean current movement.Geography 359 82
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