1, they were wrong sometimes
2. people don't trust him
Child abuse would be the best answer as child abuse is a common form of abuse
In a voltaic cell , the anode electrons and is oxidized , while the cathode electrons and is reduced.
During a scientific study a hypotheses is generally modified or discarded
so for first blank the answer is hypotheses
Now in case of phlogiston theory it was assumed that when a substance catches fire it evolve certain substances known as phlogiston which was later on discarded as there is no such particle. Infact a substane undergoing oxidation may gain weight
Hence in second blank the answer is new evidence didn’t support it,