In a strike-slip fault, the rocks on either side of the fault slip past each other sideways with little
a.
noise.
b.
shaking.
c.
up-or-down motion.
d.
movement.

I think the answer is letter c the up-or-down motion. A strike-slip fault moves sideways, giving opposite direction and parallel horizontal movements. The force that the land experiences can make the rocks slide up and down. This is caused by the movement of the earth's tectonic plates.

Three alkali metals in group 1 are calcium, strontium, bariumboron, aluminum, galliumsodium, potassium, rubidiumfluorine, iodine, chlorine