Question

which of these two statements meets the criteria of a scientific hypothesis? a. acids turn red litmus paper blue. b. all life in the universe exists on earth. statement a statement b

Explanation:

A scientific hypothesis should be testable and falsifiable. Statement a is incorrect as acids turn blue litmus paper red, not red litmus paper blue, so it's not a valid hypothesis. Statement b is a testable and falsifiable claim about the existence of life in the universe, meeting the criteria of a scientific hypothesis.

Answer:

B. All life in the universe exists on Earth.