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
The war giving Cuba independence from Spain was the "Spanish American War", since this was the war in which the US engaged with Spain in part because of their ill treatment towards the Cuban natives.
I believe the answer is: A. <span> Correlation
There is nothing that mentioned the development of henry Bessemer's invention was made impossible only because of Abraham darby's invention.
Becaus of this, both inventions are only correlated with one another since they do not form a cause and effect relationship.</span>
By the year 1857 the British had established complete political control of India. ... The mutiny of the Sepoy (= native troops in the British army) began on May 10, 1857, when Indian soldiers who had been placed in irons for refusing to accept new cartridges were rescued by their comrades.