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The correct answer is differences in temperature *and* differences in salinity between the tropic and polar regions.
However in the tropic regions the currents are started by the prevailing winds. And in the polar region the more saline and therefore, denser waters in the current sink to the bottom, which of course is caused by gravity.
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∙ 12y ago
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Why do large land areas cause surface currents to change direction?
because the surface currents move in huge circles ,they move clockwise in the northern hemisphere
What are three major surface currents?
They are surface currents, deep water currents. One moves water on the surface the other moves deep water.
Do deep ocean currents and surface currents mix?
Deep ocean currents and surface currents do meet, but mixing is limited. The waters stratify based on temperatures and salinity. The higher the salinity, the heavier the water.
What is the main cause of surface currents in earth's ocean?
I think that the whether that hits the water
What factor causes surface currents north and south of the equator to move in different locations?
Surface currents are created by air currents, earth's rotation, and positions of the continents.
What cause surface currents?
Wind!
What is the cause of most surface currents?
Density
What is the difference between surface currents and deep currents?
Deep ocean currents are in the depths of the oceans. Surface current are at the surface, not deep down. Deep ocean currents bring vitamins and nutrients to the shore, surface currents do not. Deep ocean currents are caused by salinity and temperature differences. Surface currents are cause by the force and impact of the wind.
What is difference between surface currents and deep currents?
Deep ocean currents are in the depths of the oceans. Surface current are at the surface, not deep down. Deep ocean currents bring vitamins and nutrients to the shore, surface currents do not. Deep ocean currents are caused by salinity and temperature differences. Surface currents are cause by the force and impact of the wind.
What is the main cause of surface currents in earth?
convection
What causes ocean currents on the surface?
Surface currents in the ocean are the continuous movements of water found at the surface to just a few feet below, these currents are generated by the planet's prevailing winds-which are a direct result of the Sun's radiation and Earth's rotation.
What causes the continuous flow of surface currents?
Surface currents in the ocean are the continuous movements of water found at the surface to just a few feet below. These currents are generated by the planet's prevailing winds-which are a direct result of the Sun's radiation and Earth's rotation.
How the sun is the major source of energy that powers surface currents?
The sun is major source of energy that power surface currents because the sun causes wind to blow and winds cause surface currents to form
What is the cause of surface currents?
The circulation of cold and warm water between the poles and the equator, and the rotation of the earth, cause ocean currents to flow.
What causes currents on the ocean?
Surface currents in the ocean are the continuous movements of water found at the surface to just a few feet below, these currents are generated by the planet's prevailing winds-which are a direct result of the Sun's radiation and Earth's rotation.
Why do large land areas cause surface currents to change direction?
because the surface currents move in huge circles ,they move clockwise in the northern hemisphere
The wind stirs up currents?
Surface
