Question

which is a liquid that is used to absorb and release thermal energy?
coolant
lubricant
grease
fuel

Explanation:

A coolant is a liquid that absorbs and releases thermal energy. It is used in systems like car engines to regulate temperature. A lubricant (like grease) reduces friction between moving parts. Fuel is used to produce energy (not primarily for absorbing/releasing thermal energy).

Answer:

coolant