Describe a process that converts chemical energy to thermal energy

Examples of such processes include:

1. Gasoline is ignited in a car engine. As the gasoline burns, it creates  small explosions which release heat or thermal energy which moves the pistons and thus the car moves forward.

2. Chemical energy in coal is released as the coal burns to release heat or thermal energy which is used to  heat water  e.g. in a power plant resulting in production of steam to turn turbines.

3. A butane torch burns gas. As the chemical bonds are broken, the thermal  energy released increases the heat energy of a metal which melts and  thus two pieces of a metal can be welded together.

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).