asked 104k views
5 votes
In order to be accepted, a theory, such as evolution, must be

testable
observable
testable and observable
neither testable nor observable

1 Answer

7 votes
It must be observable. People who agree with the Big Bang theory say that things such as stars and galaxies moving away from a center is proof. However, no one can test the Big Bang.
answered
User Vernal
by
7.5k points
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