Tropical!!!!!!!!! i think
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!
B) Milk- dairy products are Domestic milk markets were heavily regulated until the 1980s, particularly for milk used for domestic fresh milk sales. ... Growth in the Australian dairy industry is dependent on expanding export markets.
Answer: B.
Explanation:
I believe it is B. because the population hasn't had much of an increase and in the next 50 years I think it will still be the same from now till 50 years.