Craters visible on the moon's surface provide further evidence of
a) frequent asteroid impacts.
b) periodic volcanic eruptions.
c) frequent landings of spacecraft.
d) the long-ago presence of ice on the moon.

What kind of intermolecular forces act between a hydrogen fluoride molecule and a hydrogen peroxide molecule? note: if there is more than one type of intermolecular force that acts, be sure to list them all, with a comma between the name of each force.