Question

Which statement best describes scientific theories? (A) they are discarded every ten years (B) they can be modified (C) they are not supported by data (D) they can never be changed

Answer 1

theories remain as such so long as no data  emerges that disagrees with it.
theorie can be modified when new data comes out to improve it accuracy.
there is no certainty that a theory will be discarded after 10 years.

answer:c)

Answer 2

the answer is C........