How did Wegener contribute to the Theory of Plate Tectonics?

Wegener proposed that a meteor hit Earth that caused plate tectonics to shift.
Wegener proposed that there has only been one supercontinent that existed.
Wegener proposed that the current continents were once connected into larger land masses.
Wegener proposed that Earth is only made of one large plate tectonic.

Which of the following statements best describes the spread of communism in the years immediately following world war ii? a. the number of communist countries increased during these years. b. the number of communist countries decreased during these years. c. the number of communist countries stayed the same during these years. d. the number of communist countries increased in asia but decreased in europe. ( answer in the format above for me to understand)

Whose on-field leadership is responsible for the success of the united states in the battle of new orleans during the war of 1812?

Hitler hoped the threat of would deter the u. s. from entering the war. a. japanb. genocide c. nuclear war d. war on two fronts