Match the letter with the answer a. world population doubled twice in this time frame b. the last drop in human population rates c. industrial revolution 19th century d. human population doubled during this time period the start of major population growth. 20th century. black death pandemic. 19th century.

A. World Population doubles: 20th century

B. Last Drop in Human Population rates: Black Death Pandemic

C. Industrial Revolution: 19th century

D.

Confusing question - reword!

Match the letter with the answer

A.World population doubled twice in this time frame 20th century

B. The last drop in human population rates . Black Death pandemi

C. Industrial Revolution 19th century

D. Human population doubled during this time period The start of major population growth.

c. 19th century.