on the island of hawaii, keanu notices that the sand on the beach is black, the same color as the rock…

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? wind and rain interacted with the rock, breaking it into small pieces. rays from the sun shone down on the rock, and it broke into pieces. if anything were left out for a long time, it would break into small pieces. the sand was formed by earthquakes, tsunamis, and other natural disasters. these disasters were strong enough to break the rock into small pieces.
Answer
Brief Explanations:
Weathering is the process by which rocks are broken down into smaller pieces. Physical weathering, such as the action of wind and rain (abrasion, freeze - thaw cycles etc.), can break rocks into sand - sized particles. Sun rays alone (without other factors like thermal expansion - contraction cycles which are more complex than just "sun rays") are not the main cause. The statement "If anything were left out for a long time, it would break into small pieces" is too vague. Earthquakes and tsunamis are more about large - scale movement and destruction rather than the fine - scale process of turning rocks into sand (they can contribute but are not the primary agents for sand formation from rocks in this context). Wind and rain (as part of physical weathering) are the main agents that interact with rocks to break them into small pieces (sand).
Answer:
Wind and rain interacted with the rock, breaking it into small pieces.