Answer :
Answer;
a. it can never be proved
Explanation;
-One characteristic of a scientific theory is that it can never be proved.
-A scientific theory is a series of statements about the causal elements for observed phenomena. It is a hypothesis or a group of hypotheses about some phenomena that have been supported through research using the scientific method.
Answer: Option (d) is the correct answer.
Explanation:
A scientific theory is the result or output of a number of experiments, research, tests, observations etc.
A scientific theory is checked and verified at each and every step in order to provide a fact to the world. Hence, a scientific theory is that it summarizes a set of observations.
On the basis of these observations, a conclusion or theory is established.