Question

What is impossible to do with a hypothesis?

Answer 1

You can never fully nesscisarly prove if a hypothesis is true because we can never demonstrate the absolute truth of a hypothesis we do not have perfect knowledge or control of all variables affecting that hypothesis. The best we can do is point to evidence that supports it after test results that support the hypothesis

Answer 2

why can we never prove that a hypothesis is true An experiment can prove that a hypothesis is wrong. Not that it is true.