Anti- Federalists opposed the new constitution. Before we were under the articles of confederation which was a weak government. The new constitution was a good idea but some opposed and made the Anti-Federalists papers firing back on Alexander Hamiltons Federalist papers which promoted the idea of the new constitution.
Answer: Most likely the industrial revolution.
Explanation: The use of machines in production became more and more prevalent, eventually many factories were built in cities which caused pollution therefore making the air gross.
<span>The Ghana, Mali, and Songhai empires each grew wealthy and powerful through their trade of many products, but particularly gold. Because of the the empires were so heavily dependent on trade, various circumstances that diminished the empires' trading capacities, including the death of a leader or the strengthening of a rival empire, eventually led to their decline.</span>