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!
Answer:
they both are motorized transport methods which are still used today
The main crop would be corn because it's mostly warm there all year round!
Answer:B
Explanation:
Red star had a lower temperature than yellow-white therefore it is cooler than yellow-white stars
