Fact 1: Astove is used for cooking by generating heat.

Fact 2: Metabolic reations generate heat.

Given the two facts above, answer the question "What process can help heat up a stove?" with the following options: 
- Movement of an air mass
 - Electrical
 - Fuel cells
 - Electrical energy
 - kinetic energy
 - direct energy
 - Chemical energy
 - metabolic reaction


 

        metabolic reaction 