Well theory isnt proven. It means you have a strong idea about the subject your talking about. So if a scientist finds evidence that suggests something against the theory then it can be changed.
I suggest the easiest bat to study for your report are Vampire Bats
Answer: B. Combustion
Lavoisier’s oxygen theory of combustion was one of his most
notable contribution to science and earned him the title of the “father of
modern chemistry”. He recognized the combustible property of oxygen and that phosphorus and other metallic elements increased in terms of weight when burned.
