Answer:
They have tended to settle in poor areas of larger cities.
At first the Native American's were fine to share their land with the colonist, but it be came more clear that the colonist were starting to push the Native Americans out of their land. So how do the Native Americans think about Manifest Destiny they see it as invasive and intrusive movement that was being done by the colonist and were more than willing to go to war for their land.
To cause a source to be biased means that it is influenced by your opinion or another factor that is not factual. Bias can take away from the credibility because it is not completely true, as a source should be.
Japan needed new territory because of over population.