Answer: (a) The farmer's advice is based on an empirical generalization.
(b) No, the method of arriving at the farmer's conclusion is not scientific.
(c) Analogical Reasoning, Abductive reasoning, and Cause-and-effect reasoning.
Explanation: (a) The farmer's advice is based on an empirical generalization, and not on a normative law because the situation cited that it will rain when the clouds gather is not a universal in nature. The logic behind it being true is not necessary.
(b) The farmer's method of arriving at the conclusion is not scientific because the occurrence of the phenomenon is not guarantied. There are other factors which also effect the situation.
(c) Analogical reasoning refers to the pattern of reasoning which is based on similar characteristics found between two or more things.
Abductive reasoning refers to the type of reasoning where one refers to a set of observations to arrive at a certain conclusion.
Cause-and-effect reasoning refers to the reasoning developed with linkage between two events.