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:
D
Explanation:
If NASA had constructed a Space Shuttle without knowing if it would be safe for its passengers, there could be many casualties. So they would test it beforehand using a model, to make sure that it will be safe and sturdy for when they build it.
Answer:
Sailors call the latitudes between 40 and 50 degrees south of the equator the Roaring Forties. ... Warm air moving poleward (on both sides of the equator) is the result of nature trying to reduce the temperature difference between the equator and at the poles created by uneven heating from the sun.
