Answer:
Native American populations declined rapidly due to a lack of immunity to disease
Explanation:
At that time, many Europeans who came to American continent carried out viruses that could cause diseases such as smallpox, influenza, and measles within their body.
When they "Encountered" The native Americans, these viruses passed on to the Natives and infected them.
Because the natives have lack of immunity to disease (they never experienced diseases like that in their life) , the effect to their body is much greater compared to the Europeans. This led to large amount of death among Native Americans.
The correct answer is A!!
Option b. full employment
Full employment as an employment rate that includes no cyclical (also known as deficient demand or Keynesian) unemployment in other words, when there is enough overall demand in the economy for everyone who wants a job to have one.
Answer:
classical conditioning.
Explanation:
refers to procedures used into learning the biologically potent stimulus that is paired with previously neutral stimulus.it is also know as the process of learning that arise from pairing.
