Your answer is Permafrost
Answer:
The answer is D
Explanation:
The answer is D because when I learned A couple of weeks ago before we started the American Revolution last week my social studies teacher said that indigo was a pigment for clothes for mercantilism.
A net population decline resulting from an "excess of deaths over births".
Option: A
<u>Explanation</u>:
Demographic transition is a shift from higher to lower level of fertility and mortality.Rapid development in industrialization and urbanization in 
century resulted into enormous population growth. But decline in early 
century covered many reasons like consequences of two calamitous wars, where Europe suffered large population declination due to battle death and civilian causalities in World War I and II. Hence the acceleration of population growth in 19th century but downfall in 20th is also considered as balance.
