Answer:
The change in demographics observed in developed countries in the twenty-first century was falling birth rates and longer life expectancy. Option B is correct.
The world population is growing further slowly than it used to since birth rates have been reduced in numerous countries. At the same time, life expectancies have increased considerably.
In more than 80 countries, the birth rate is below the level of 2.1 children per woman.
The single main event that <span>caused the United states to become involved in world War 1 was the German sinking of the ship the "Lusitania," which contained many American citizens. </span>
Answer:
I think the answer is Mexicans and Germans
