<u>Answer:</u>
When studying history, asking questions and checking other sources will improve one's perspective. The other awareness necessary is "To realize all writers and reporters have some bias of culture, geography, economics or politics".
<u>Explanation:</u>
History has been documented since the dawn of civilization, it is necessary to look into the main historical records and comprehend each perspective. Ability to understand history means not to be biased with your understanding base, each era has a justification why these events had occurred. Each writer has one or the other bias and this has affected the activities they write. Thus when reading books a viewer should take this into account.
If the change in values of one set doesn't affect the values of the other, then the variables are said to have "no correlation" or "zero correlation." A causal relation between two events exists if the occurrence of the first causes the other.
Answer:
Diseases emerges.
Explanation:
In Africa many people are affected by the diseases due to the lack of clean water.
