The answer is: if the author is considered an expert in his or her field
In order to know the credibility of the author, you just need to conduct a quick research regarding the author's educational background and his/her working experiences. IF the educational background and the working field match the topics on the non-fiction books, that we assume that the author has a credibility.
Answer:
The United States had 4,355,000 military personnel involved in World War I. ... The U.S. Navy played a major role in helping to blockade Germany, keeping out supplies and hurting Germany economically. The U.S. forces that were sent to Europe during World War I were called the American Expeditionary Forces (AEF).
Explanation:
The distributution of BioSand water filters is where they get there water.
Answer:
Explanation:
Human have biological drives or impulses such as hunger, thirst, etc, rather than instincts. This absence of instincts makes humans dependent on social direction and their behaviors are amenable to such direction. The open-endedness of humans is thus the biological ground for social conformity.