Which sections of the heating curve illustrate this process?

B followed by D

Explanation:

The heat energy absorbed at B goes into potential  energy that breaks the inter-molecular bonds and thus the constant temperature. Once the molecules have gained enough energy they escape the closely bonded  structure and thus are free to move in random directions due to high kinetic energy. At this point (part D)  an increase in heat energy leads to an increase in the kinetic energy leading to an increase in the temperature.

you cant move and you feel like someones pushing you down onto your bed it can feel like you want to get up but you just can't it can be extremely scary

radiation warms things up temp rises convection currents air circ windy weather