This one is the cause:
<span>growth of the factory system.
</span>
<span>Growth of the factory system lead to pollution (from the factory chimneys), it made people move from farms to the cities and as a result the number and size of cities increased. </span>
D) to prevent neighborhoods from becoming segregated
<span>The war of 1812 started because of British economic stoppage of France, the American sailed into the British Royal Navy territory, and the British support to hostile Indians.</span>
The Constitution of the United States established America's national government and fundamental laws, and guaranteed certain basic rights for its citizens.
Answer:
Greater involvement of the United States in international affairs.