How did city commuting change beginning in the late 1800s? - Elevated trains and subways replaced horse-drawn trolleys.
- Horse-drawn trolleys replaced elevated trains and subways.
- Subways and automobiles replaced horse-drawn trolleys.
- Automobiles and railroads replaced horse-drawn trolleys.

battle of survival between farmers and the rabbits during the great depression

congress also has implied powers, which derive from the necessary and proper clause of the constitution and permit congress "to make all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states.

the passage of a strict fugitive slave law