Question

1.what are the states in which a fuel may exists ?
2.how heat and light produced in a cell?
3.where was matchstick was used?​

Answer 1

Answer:

In summary, the three types of fuels for common chemical combustion or rapid exothermic oxidation are solids, liquids and gasses. Originally Answered: What are the three types of fuels? It's easy to thing of three examples of fuels such as methane, gasoline and coal, but three types may mean something different.

Explanation:

Answer 2

Answer:

1. fuel may exist in all states {solid. liquid. and gaseous state}

2. mitochondria gives energy to the cell to produce heart and light