WebSep 12, 2024 · What are three causes of convection? - heating and cooling of the fluid, - changes in the fluid's density, and. - The heat source for these currents is heat from Earth's core and from the mantle itself. - Hot columns of mantle material rise slowly. What is the cause of convection? WebMost thermal energy in the atmosphere moves by convection. Convection is the transfer of thermal energy by the movement of a liquid or gas. Convection works when a liquid or gas is unevenly heated. Hot liquids (and gases) are less dense and rise, causing convection currents. The warmer section of the material will rise while the cooler part ...

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WebSep 12, 2024 · Convection currents are part of what drives global circulation of the Earth's atmosphere. Combustion generates convection currents. The exception is that combustion in a zero-gravity environment … WebLarge convection currents in the aesthenosphere transfer heat to the surface, where plumes of less dense magma break apart the plates at the spreading centers, creating divergent plate boundaries. As the plates … injection for ticks in cattle

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WebAug 31, 2024 · A current is the steady flow of a fluid (such as air or water) within a larger body of that fluid. Large-scale currents are found throughout Earth's atmosphere and oceans. In the atmosphere, air currents are caused by the uneven heating of Earth's surface. In the ocean, water currents are caused by winds or differences in density. WebWinds, in turn, create surface waves on the ocean. Convection also plays a role in the movement of deep ocean waters and contributes to oceanic currents. Inside Earth, the … WebWhen a divergent boundary occurs beneath oceanic lithosphere, the rising convection current below lifts the lithosphere, producing a mid-ocean ridge. Extensional forces … injection for tmj