What major event led to the US entering WWII? a) The bombing of Pearl Harbor.
b) The sinking of the Lusitania.
c) The sinking of the USS Maine.
d) The US interception of the Zimmerman Note.

The bombing of Pearl harbour was the event which led US entering WWII

c.

worked constantly and gave many sincere speeches about the importance of independence

i think the answer is the one about environmental and social health.

hope this