it causes the difference in density, denser water flows to the less dense parts
uneven heating of the earth by the sun
yes
yes
yes
Yes, that's the basic cause of convection.
Surface currents are caused by wind, and affected by the rotation of the Earth and the gravity of the moon (tides). When the oceans are deep, convection within the layers can also affect the flow of currents. * While wind currents are greatly affected by uneven heating of the Earth's surface, there is no corresponding heating of the ocean bottom by the Sun. So currents do not form spontaneously at depth.
Surface currents are caused by wind, and affected by the rotation of the Earth and the gravity of the moon (tides). When the oceans are deep, convection within the layers can also affect the flow of currents. * While wind currents are greatly affected by uneven heating of the Earth's surface, there is no corresponding heating of the ocean bottom by the Sun. So currents do not form spontaneously at depth.
I have exactly no idea. LOL. TRICKED YOU. sorry.
Uneven heating leads to convection and thus wind currents. Heating of water leads to evaporation, which moistens the air. As these moist air masses are moved by wind currents number of conditions, such as collision with cooler or drier air, can trigger thunderstorms as the moisture condenses. If the wind varies in speed and direction with altitude it can start some thunderstorms rotating. This rotating can go on to produce a tornado.
ummm...i think the sun powers the wind, and the wind powers the currents. that's what all of my sources say, but if im wrong, then.....well yeah you get the point.
The sun heats the Earth, and then longwave radiation heats the troposphere via convection currents.
The differing air temperatures cause the winds.