EARTH SCIENCE
TECTONICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The sinking of heated material and the rising of cooler material in the mantle due to the heat from the core
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The rising of warm material and sinking of cooler material in the mantle due to heat from the core
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Th rising of warm material from the crust and the sinking of cooler material from the core
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The sinking of material from the crust due to the heat from the sun
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Detailed explanation-1: -Convection currents are identified in Earth’s mantle. Heated mantle material is shown rising from deep inside the mantle, while cooler mantle material sinks, creating a convection current. It is thought that this type of current is responsible for the movements of the plates of Earth’s crust.
Detailed explanation-2: -The rising and sinking of warm and cooler material is called convection. Conduction brings hot material up toward the surface. It brings cooler material down toward the core, and so on.
Detailed explanation-3: -Convection currents are movements of fluid caused by a temperature or density difference within a material. Convection currents are only seen in gases and liquids because particles within a solid are fixed in place.
Detailed explanation-4: -Convection. The rising of warm air is how heat (or energy) is transferred throughout our atmosphere. This process is called convection, and the rising of warm air and sinking of cold air is called a convection current. These convection currents can also be seen in a liquid, like a pot of boiling water on your stove.
Detailed explanation-5: -Convection currents do not occur in the inner core. This is because the material in the inner core is under so much pressure that it is solid even at the high temperatures experienced there. Solid materials do not undergo convection because their particles are too close together to allow it.