Question

According to the theory of evolution, amphibians evolved from ancient fish. Which of these would best validate the theory?

A. record of history of a place
B. a study published by a research scholar
C. record of temperature changes of a place
B. a study crediting the theory by many scientists

Answer 1

The correct answer is option D

According to the theory of evolution, amphibians evolved from fishes. This theory would have been published in the a journal by the researcher after being agreed by the fellow researchers.

The theory is considered valid only when many researchers agree on same topic.The study is validated only when most of the researchers agree on the same.

Answer 2

B. a study crediting the theory by many scientists

Step-by-step explanation:

A theory becomes a scientific law when it is repeatedly tested by several scientists around the world and same results are found by each of them and therefore, no point of conflict is left.

Similarly, the best way to validate a theory is by conducting the same study at different places. If several scientists credit the theory, it means that they have done enough investigation and research and found the theory appropriate.

Therefore, D is the best option.

Hope it help!