The answer is b. continental break-up. During this time, the continents began to
form and also separate in different areas. It was also the time of mammals as
dinosaurs were now extinct, mammals began to flourish in the earth. The climate
was now cooling down during this period.
Answer:
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Upton Sinclair's The Jungle: Muckraking the Meat-Packing Industry. Upton Sinclair wrote The Jungle to expose the appalling working conditions in the meat-packing industry. His description of diseased, rotten, and contaminated meat shocked the public and led to new federal food safety laws.
They were going to do this through the construction of a
canal. This was a joint effort by
government and businessmen and this was to be called the Erie Canal. This enabled merchants and traders to
transport their goods by water which was faster and facilitated trade.