Which is the most likely reason why scientific theories change?
A B C D
public opinions change retiring scientists are replaced more money is spent on science scientists make new observations
Question: Which is the most likely reason why scientific theories change?
(A) public opinions change
(B) retiring scientists are replaced
(C) more money is spent on science
(D) scientists make new observations

Answer: (D) scientists make new observations
Answer: (C) more money is spent on science
Question: Which is the most likely reason why scientific theories change?
(A) public opinions change
(B) retiring scientists are replaced
(C) more money is spent on science
(D) scientists make new observations
Answer: (D) scientists make new observations