On the island of Hawaii, Keanu notices that the sand on the beach is black, the same color as the rock formations on the island. Keanu realizes the sand used to be part of the rock formations. How did material from the rock formations turn into sand? a

Rays from the sun shone down on the rock, and it broke into pieces.

b

If anything were left out for a long time, it would break into small pieces.

c

The sand was formed by earthquakes, tsunamis, and other natural disasters. These disasters were strong enough to break the rock into small pieces.

d

Wind and rain interacted with the rock, breaking it into small pieces.