convection currents within Earth's core and mantle transfer large amounts of heat when
Ahotter, less dense rock rises and cooler, more dense rock sinks
Bcooler, less dense rock sinks and hotter, more dense rock rises
Chotter, less dense rock sinks and cooler, more dense rock rises.
Dcooler, less dense rock rises and hotter, more dense rock sinks.
Ahotter, less dense rock rises and cooler, more dense rock sinks
Bcooler, less dense rock sinks and hotter, more dense rock rises
Chotter, less dense rock sinks and cooler, more dense rock rises.
Dcooler, less dense rock rises and hotter, more dense rock sinks.