The answer is A. Frank Lloyd Wright
1. malaria 2. rivers had terrible waterfalls..too dangerous...until the steam engine was invented it was incredibly dangerous 3. deserts....they didn't know how to travel through the deserts and find an oasis which made it very difficult to travel through
This is one of the basic beliefs of the Mormons
They are a church based on Christianity which was found by Joseph Smith. He believed that property should be owned commonly and not by individuals because people wouldn't be greedy then. This also applied to marriage since polygamy was encouraged so as to prevent only one person having access to something.
Before the panama canal people from East coast of America who wanted to go to Asia had to either sail around south America which took months or sail towards Asia and go around Africa which took even longer. The panama canal was a short cut right in the middle of central America which cut navigation time in half. Hope I helped. :)
Goldstone theorizes that revolutions are because of forcible political change because of elites of attacking a weakened ruler or government instead of aiding the situation
