Answer:
If a decrease in temperature accompanies a reaction, Energy was absorbed.
So the forth option is correct option.
Step-by-step explanation:
- If decrease in temperature occurs during a reaction, it indicates that the reaction is endothermic reaction.
- Endothermic process describes the process or reaction in which the system absorbs energy from its surroundings, usually in the form of heat.
- So energy in form of heat is absorbed.