Arose from a need to ease poverty and political instability, were influenced by the US anxiety regarding the spread of communism, resulted in the death and disappearance of many protesters are the three phrases describe political revolutions in Latin America in the twentieth century.
Answer: A.
Explanation: The option A is: Over the course of the eighteenth century, the average output of ironwork tripled as a result of several improvements in blowing machinery and because coal replaced charcoal as the fuel used in the smelting of iron ore.
This is the perfect answer to why was the output tripled.
Diseases like small pox. Europeans where in a way adapted to it, but the people in the new world did not stand a chance because they did not encounter it before.
The Answer is B for this question
The phalanx was arectangular<span> mass military </span>formation<span>, usually composed entirely of </span>heavy infantry<span> armed with </span>spears<span>, </span>pikes<span>, </span>sarissas<span>, or similar </span>weapons<span>. The term is particularly and originally used to describe the use of this formation in </span>Ancient Greek warfare<span>, although the ancient Greek writers used it to also describe any massed infantry formation, regardless of its equipment.</span>