American urbanization during the first half of the 19th century was made possible primarily because of advances in
a) consumer electricity.
b) food preparation and hygiene.
c) military weapons and tactics.
d) public and private transportation

the answer is D, UwU

true. earthquakes are felt whenever there is a slip around a fault in the rocks below the earth. this reorientation of faults create sesmic waves and is known as earthquake, the severity of which is measured in richter scale. these are more prominent in hilly regions as the rocks usually form faults to balance the pressures on it.