Failed experiments, uncontrolled variables, invalid data, and generalized human error
Refraction
the fact or phenomenon of light, radio waves, etc. being deflected in passing obliquely through the interface between one medium and another or through a medium of varying density.
Answer: nuclear fusion
Explanation: give me a brainliest
Floating. When you have no gravity you have nothing to be pushing you down to the floor so that would be an example of no gravity pushing on you.
