it causes the difference in density, denser water flows to the less dense parts
Convection currents resulting from uneven heating of the Earth's surface cause the movement of tectonic plates. This movement can lead to phenomena such as earthquakes, volcanic eruptions, and the formation of mountain ranges.
uneven heating of the Earth's surface by the sun, which creates temperature and density variations in the air and water. These variations drive the movement of air and water around the globe in convection currents.
yes
Yes, winds are examples of convection currents. The uneven heating of Earth's surface by the sun creates temperature variations that cause air to rise and fall, creating convection currents that result in winds.
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.
The sun heats the Earth, and then longwave radiation heats the troposphere via convection currents.
Yes, uneven heating of air in the Earth's atmosphere can cause convection to occur. When air is heated unevenly, it expands, becomes less dense, and rises. As the heated air rises, it creates a region of lower pressure at the surface, which in turn pulls in cooler air to take its place, setting up a convection current.
the primary source of ocean currents is the sun but other direct energy sources are1. global wind patternsa. trade windsb. the westerly winds*wind is the cause of surface currents in the oceans.
The primary effect of heating a gas is lowering the density of the gas, making it lighter. Uneven heating of gas creates local density gradients, which will drive bulk movement of the gas via natural convection to get rid of the local density gradients.
Actually, it's the uneven heating of the Earth's SURFACE that is the cause of most convection. Sunlight hits the ground. Depending on what sort of surface it is, more or less of the energy is absorbed, or the sunlight reflected. Snow and ice reflect more; light hitting at low angles of incidence are reflected. Sunlight hitting paved roads or plowed fields are mostly absorbed. The hot dirt and roads heats the air above them, causing the air to expand and rise; the cooler air above is more dense, and sinks.