Answer:
1. Observations
2. Hypothesis
3. Experimentation
Explanation:
Observations are made, Hypothesies are formed from observations, and experimnets help alter and comfirm hypothesis.
Answer:
Historians divide the past into periods on the basis of economic and social factors to characterise the major elements of different moments of the past. Yes, the historians face a lot of problems because economic and social factors do not exist in a stasis, they have a tendency to change constantly.
Explanation:
False i believe hope i helped
