What was a major factor that led the united states to enter world wari?

What was going to be the third wave of japanese attack planes' targets? (if this attack had come, the us navy would have been even more crippled) question 5 options: 1 airfields 2the aircraft carriers 3 fuel depots and ship repair facilities 4 battleship row

Which statement in the passage best reflects sumer's opinion of the dred scott decision? a."i speak what cannot be denied." b."[the] judgment was sustained by a falsification of history." b."the opinion was more thoroughly abominable than anything history." i speak what cannot be denied when i declare that the opinion of the chief justice in the case of dred scott was more thoroughly abominable than anything of the kind in the history of courts. judicial baseness reached its lowest point on that occasion. you have not forgotten that terrible decision where a most unrighteous judgment was sustained by a falsification of history. -charles sumner, 1865

Which of the following was probably the most difficult challenge facing construction of the railroad?