Gravity. Gravity was a theory crafted by man
The expansion of railroads created more ways for things such as general goods to be shipped elsewhere to buyers or companies. (Hope this helps a bit, sorry for such a short answer.)
Answer:
They favored strong state governments.
Explanation:
Answer:
US factories produced aircraft for the war effort.
US troops at the front relied on trucks to keep them supplied.
Explanation:
The direct effect of the Emancipation Proclamation was the abolition of slavery in the rebelling states. Slavery was basically outlawed in all the states that had seceded from the Union. Although it is a fact that not all the slaves were freed instantly but a large number of slaves did get back their freedom.
