The spark plug ignites the fuel-air mix in the chamber. This converts __ energy in the bonds of the fuel-air mix to__ energy. This energy is then converted to the __ energy of the piston as the gas expands and pushes the piston down.

it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.

one negative thing it that it can kill water animals. another negative thing is it can cause the destruction of ecosystem. one way water pollution can be reduced is to conserve energy.