Answer: A. Word of mouth is a useless data source.
Explanation: Experimentation refers to an empirical procedure or process which is used to validate an hypothesis or establish a fact. However, experimentation requires rules which guides the process, these rules are necessary in other to avoid bias, false conclusions or inference.
According to the options given in the question above, facts used in experimentation should be traceable and reproducible. Word of the mouth is a useless data source as it usually has no empirical basis. Expert opinion or information being established by three or six sources could be considered as a fact.
Thunderstorms usually occur at cold fronts.
Answer:
Well first we are not allowed to give the answer and second just re read it inorder to find key words to help you with the problem
Explanation:
Answer:
A tropical depression is a tropical cyclone that has maximum sustained surface winds (one-minute average) of 38 mph (33 knots) or less. A tropical storm is a tropical cyclone that has maximum sustained surface winds ranging from 39-73 mph (34 to 63 knots).
The first printing press. Before 1440 only a few thousand handwritten texts existed across Europe.
