I think the answer is ozone i hope i am right and hope this helps
Pros: Might someday cure disease, might someday increase crop yeild, might create things that can be of our use.
Cons: Genetic engineering could cause food allergies, have bad side affects, it could kill animals over time.
I hope this helps.
86 degrees fahrenheit or 30 degrees celsius
Chemicals in the water rise up through the water process and spread over the Earth.