How is a scientific law different from a scientific theory? a. a theory cannot be disproved but a law can be disproved. b. a theory is used for biology and chemistry and a law is used for physics. c. a theory becomes a law after a long period of time has passed. d. a theory is why something happens and a law is how something happens.

The correct answer is option D. A theory is why something happens and a law is how something happens.

The scientific law is referred to the explanation of a phenomena. It describes the working of a specific phenomenon in details, however, the reason behind the occurrence of the phenomena is not described in a law.

The scientific theory is the explanation, why a phenomena takes place. The theory describes the reasons for the occurrence of any particular phenomenon in nature.

It is a misconception that the theory becomes a law after a long period of time, also, theory and laws are not limited to any subject especially. According to the evidences, the theory and laws are subjected to be modified or disapproved.