In Brian Greene's "A Physicist Explains Why Parallel Universes May Exist", what reason does Greene give for why he believes parallel universes may exist? Question 1 options:

Worm holes make traveling between parallel universes possible.

There are only so many ways matter can arrange itself within that infinite universe.

He has seen a parallel universe himself.

Scientists have already proven the existence of parallel universes.

Two people each hold the end of a rope and create waves by moving their arms up and down. this wave is best classified as a transverse wave because a) both the rope particles and the wave are moving in the same direction. b) the wave is moving up and down as the particles of the rope move horizontally. c) the wave is moving horizontally as the particles of the rope move up and down. eliminate d) the wave is moving in a parallel direction with the motion of the person's arms.