Please help me Convection occurs because: Small earthquakes occur within the Earth’s crust causing rocks to shake and change temperature.

Oceanic crust is being destroyed at deep ocean trenches.

Molten rock comes close to the Earth’s core it heats up, becomes less dense and rises and the molten rock near the Earth's crust cools down, becomes more dense, and sinks causing the cycle of convection.

Convection does not occur within the Earth.

Molten rock comes close to the Earth’s core it heats up, becomes less dense and rises and the molten rock near the Earth's crust cools down, becomes more dense, and sinks causing the cycle of convection.

Explanation:

Convection occurs when particles with a lot of heat energy in a liquid or gas move and take the place of particles with less heat energy. Heat energy is transferred from hot places to cooler places by convection. Liquids and gases expand when they are heated. ... The denser cold liquid or gas falls into the warm areas.

*i hope i am right*