Which event led the United States to enter World War Two

PEARL HARBOR

Explanation:

when japan bombed pearl harbor, it endead when we dropped the second bomb because japan wouldn’t surrender.

Explanation:

The Japanese attack on the US naval base in Pearl Harbor, Hawaii, led President Franklin Roosevelt to declare war on Japan. A few days later, Nazi Germany declared war on the United States, and America entered World War II against the Axis powers.

the process of industrialization is called a revolution because

answer: the time zones used to be whatever the local authority wanted them to be. one town might have 6am whenever the sun came up and another town had 6am 10 minutes later.  

the trains had a hard time when their orders said to be at a certain point at 6am.  

6am, but who's 6am.  

the railroads got together and set the time zones more or less along the longitude lines across the country.

explanation: