So they can give their people what is best for them
Answer:
In addition to the drought and marauding enemy theories, scientists suggest that things like poor sanitation, pests, and environmental degradation may have caused the Anasazi to move.
Explanation:
The 18th Amendment was reversed by the 21st amendment.
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An increase in the price of cocaine is the least likely effect that illegal drug production and trade has on Latin America. All others have a strong effect on the illegal drug production.
Answer:
Yes.
Explanation:
Any source in History can be biased. It can be based on personal opinion, pressure, etc.
Let's take an example. Let's say we want to learn more about Hitler, and we have a primary source that we are analysing. The primary source is a diary entry from a Nazi propagandist, and in the diary entry he talks about how Hitler is like a reincarnation of God, he will lead Germany and the world to greatness and is all in all a great guy.
Straight away, you can tell that that is biased.
So to summarise, anything can be biased. It isn't related to what type of source it is. If you want to analyse and interpret sources, you will need to have lots of different primary and secondary sources at hand, and compare them to find the best answer and analysis.
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