Question

Which of the following is true about scientific theories?
I. New research is often done to learn more about existing scientific theories.

II. Scientific theories can be revised, changed, or even rejected.

III. Scientific theories are considered to be facts and cannot ever be modified.

IV. New scientific theories can be formed to explain new phenomena.

Answer 1

the second one ^_^ II

Answer 2

Thanks !

Answer 3

np ^_^