Mantle material rises in convection currents because heated materials become less dense.
<h3>What is convection current?</h3>
- Convection is a single- or multiphase fluid movement that develops on its own as a result of the interaction between a fluid's body forces—most frequently gravity and density—and material property heterogeneity.
- Differential heating leads to convection currents. Warm, less dense, lighter material rises while cool, more dense, heavier material sinks. When a fluid's one component is heated, the difference in temperatures causes the fluid to flow in a particular direction.
- The process of a heated fluid rising and being replaced by a cooler one is known as convection cycle.
- Convection currents use the mass motion of a fluid, such as water, air, or molten rock, to move heat from one location to another. The earth's ocean currents, atmospheric weather, and geology are all controlled by convection currents' capacity to transport heat.
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<span>it shouldnt encourage other countries to use more nuclear energy and should avoid using it. </span>
A large area of the earth's crust will go through a downwarping process that creates a(n) basin. Downwarp is a broad depression of the earth's surface. Basins resemble synclines, but the beds dip uniformly in all directions toward the center of the structure. They are caused by downwarping.
It us found in chinas northeast region
Answer:
A
Explanation:
because food shortage is a basic need
