The answer is D. Knowing that cholera is spread by contaminated water, they could take necessary precautions to make sure they had clean water supplies. As illustrated in the article, the <span>"white, flocculent particles" were discovered to be in the water sample taken from a pump. When the handle of the pump was removed so no one can take water from it, the spread of the cholera disease significantly dropped. </span>
Earth quakes are caused by tectionic plates moving against each other, sometimes they get stuck on what is called faults, pressure builds up and when they finnally come unstuck it releases a shake. THE ANSWER IS TECTONIC PLATE BOUNDARIES ALSO KNOWN AS PLATE BOUNDARIES.
True. The Directory was a weak and corrupt group that started to look like the Old Order.
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The uneven heat causes difference in pressure.
The difference in pressure causes wind to form.