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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.
What else can I help you with?
Why do large land areas cause surface currents to change direction?
Large land areas can disrupt the flow of surface currents due to the friction they create with the water. As the water encounters the landmass, it is forced to change direction or split into different currents to navigate around the obstacle. This can lead to the redirection of surface currents along the coastline or the formation of eddies and gyres.
What part of the earths interior is inferred to have convection currents that cause tectonic plated to move?
It is the mantle that is inferred to have convection currents that cause tectonic plates to move. Heat from the Earth's core creates these currents, which drive the movement of the rigid plates on the Earth's surface.
What is the main cause of surface currents in earth's ocean?
Surface currents in the Earth's oceans are mainly caused by the combination of the wind and the rotation of the Earth (Coriolis effect). The wind pushes the surface water, creating movement, and the Coriolis effect deflects this movement to create currents.
What are the three types of ocean currents?
The three types of ocean currents are surface currents, deep currents, and tidal currents. Surface currents are driven by winds, deep currents are driven by density and temperature differences, and tidal currents are driven by the gravitational pull of the moon and sun.
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 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 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
The wind stirs up currents?
Surface
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 is the cause of most surface currents?
Surface currents are primarily caused by the wind, which transfers its energy to the ocean's surface through friction. The rotation of the Earth also influences the direction of these currents through the Coriolis effect.
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.
What is the primary cause of surface ocean currents?
Wind
Are density currents faster than surface currents?
no, density currents flow slower than surface currents because surface currents are powered by the wind ;)
