Question

what characteristic is necessary for a hypothesis to be useful in a scientific investigation?
o it must happen in a lab.
o it must be proven.
o it must be testable.
o it must be true.

Explanation:

A useful hypothesis in science can be tested through experiments or observations. It doesn't have to occur in a lab, be proven initially, or be true right away. Testing it helps in validating or refuting it.

Answer:

C. It must be testable.