Options:
a. It can never change.
b. It can change every time it is tested.
c. It can be proven conclusively.
d. It is well-tested and explains a wide range of observations
Answer:
D) It is well-tested and explains a wide range of observations
Explanation:
A scientific theory is the result of a wide range of observations, research and experiments. Scientific theories try to explain different aspects of the natural world. In order for scientific theory to be accepted by the scientific community, it must be proved by research and experiments that can be repeated and the results should be constant throughout the different experiments.
