Respuesta :
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,
The hypothesis are most likely to be replaced and Long ago, in the 1600s, scientists discarded the phlogiston theory because new evidence didn’t support it.
Hypothesis:
It is an idea that claim to explain a natural phenomenon but not yet tested.
Example: This toothpaste may make my teeth shine.
Theory:
An idea that tries to explain phenomenon and supported by some evidences. They will modify when new evidence didn't support the old one.
Example: Big bang theory
Law:
It is the explanation of the mathematical derivation of natural phenomena. It is certain truth.
Example: Laws of motion
Hence, we can conclude that the hypothesis are most likely to be replaced and Long ago, in the 1600s, scientists discarded the phlogiston theory because new evidence didn’t support it.
To know more about Theory and laws, refer to the link:
https://brainly.com/question/13452553?referrer=searchResults