Question 7. A scientific theory (a) cannot be changed but can be reformulated (b) is fixed once and for all because it is logical (c) is changed to suit new fashion among scientists (d) can be revised if required to fit new phenomenon or data
iThe correct option to the above question is (a), which is a scientific theory that can be revised if required to fit new phenomena or data. A scientific theory can be revised according to the new standards and understanding. Whenever they are tested and controlled they can be changed and often revised.
