Which of the following can move energy from place to place? sound
a moving baseball
electric currents
all of the above

I uploaded the answer to a file hosting. Here's link:

is.gd/qKzpBU

Gorillas use intimidation to establish and maintain alpha position. ... However, only the alpha females had strong interactions with the alpha males by virtue of a dominance hierarchy among the females in which only the most dominant and strong females were able to interact with the alpha male.