Answer:
897898749+4878947948=87798478
Explanation:
if u takee 949484 it turntsinto 38478974894 thanks for the points
I believe the answer is number 2: Natural Harbors. The Industrial Revolution found success in Britain/England due to it's harbors and ports. I'm not sure how the weather and geographical conditions would have a major impact on the Industrial Revolution.
I think Tibet is the most tropical
I believe that it is Olmec.