1. Causes: Radiogenic heat rises to heat molten magma. - Effect: Magma at the core-mantle boundary rises and convection currents are formed. This is because, the heat from the rising mantle leads to convection currents and made the core-mantle to rise gradually from bottom to top.
2. Cause: Earth is covered by a crust that runs miles deep - Effect: The mantle is insulated from the atmosphere and retains tremendous heat.
3. Cause: Tectonic plates at transform boundaries experience friction - Effect: Pressure builds up, eventually leading to an earthquake. This is because, earthquake occurs because there is tension and strain between the tectonic plates due to the energy that is released when the plates actually move.
