Prince Henry the Navigator was known as one of the most enthusiastic supports of Portuguese exploration during the 15th century.will be a.<span>Prince Henry </span>
Workers were drafted, so they had to join the war and leave or quit their jobs. People also volunteered to serve, and so people who didn't get drafted or join, took their places.
the answer is: <span>the third variable problem
</span><span>the third variable problem refers to the additional factor that could mistakenly lead to the false conclusion in determining the causal relationship between two other factors.
Other example:
There was a study that shown that eating soy bean leads to the development of breast cancer. But if we take a look at East Asian population who consume more soy beans compared to western people, East Asian population have far less cancer cases.
In this case, we can say that Genetic is a t</span>hird variable problem
