Answer:
mountain chains, earthquakes, volcanoes.
Answer:
The Amazon is the world's longest river.
Answer:The quality or state of being volcanic; volcanic activity. ... The level of power of a volcano.
Explanation:
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:
Since the Sun rises in the east and the Earth moves from west to east, time on the eastern hemisphere is ahead of the Greenwich and that on the western hemisphere is behind it.