Question

What is a destructive force caused by the convection in the mantle

Answer 1

Answer:

convergent margins.

Explanation:

Mantle convection causes the phenomenon of plate tectonics on the earth surface.

From plate tectonics, we understand that the earth surface is broken into several giant slabs made up of the crust and upper part of the mantle. This is called the lithosphere. The lithosphere sits on the weak and plastic asthenosphere in the mantle.

The mantle is made up of series of convective cells through which hot, molten and lighter materials which are more buoyant rises up. They are then replaced by cold and denser materials. This system of exchange sets up a convection system which drives the overriding lithospheric plates.

The plates can collide with one another at convergent margins, some can move away from one another at divergent margins and some just slides past one another at transform margins.

A convergent margin is a destructive margin in which the lithosphere is destroyed either by collision or subduction.

Answer 2

Answer:

Explanation:

The mantle is the layer that is located beneath the earth's crust, which is the most superficial part of the Earth. The rocks that constitute it are rich in oxygen, magnesium, silicon and iron. It is found at temperatures between one thousand five hundred and three thousand degrees Celsius.

Convective heat transfer means that heat is carried from one place to another by the movement of the medium itself. Warm materials are lighter, so they rise, while cold materials are heavier (denser) and therefore sink. This is observed in the mantle of the Earth. The warm mantle is emerging from the deepest part, while the mantle that is cooling is sinking, creating a convection current.

It is believed that the convection movements of the mantle within the Earth are the cause of the oppression movements of the tectonic plates, resulting in events such as earthquakes and volcanic eruptions.