One could be the lighting of a firefly, because there is a chemical reaction that happens inside of the firefly that makes it glow, and another could be making food, because you have to add baking soda in some foods, and it reacts with other ingredients. Hope that helps.
Majority of the southern economy depended on slave labor
Answer:
which two questions you did not post them
The ___Blood____ of the komodo dragon might help save human lives
