The alternate heating and cooling of rocks results in

The question is asking about what happens to rocks when they undergo repeated cycles of heating and cooling. The options given are sublimation, volatilization, fragmentation, solidification, and sedimentation.

When rocks are subjected to alternate heating and cooling, they undergo a process called thermal expansion and contraction. This means that when rocks are heated, they expand, and when they are cooled, they contract. This expansion and contraction can happen repeatedly over time.

The correct answer to the question is fragmentation. When rocks undergo repeated cycles of heating and cooling, the stress caused by the expansion and contraction can weaken the structure of the rocks. Eventually, this can lead to the rocks breaking apart or fragmenting into smaller pieces.

Sublimation is the process in which a substance changes directly from a solid to a gas without going through the liquid phase. Volatilization refers to the conversion of a substance into a vapor or gas. Solidification is the process of changing from a liquid or gas to a solid state. Sedimentation is the process of deposition and settling of particles.

In summary, the correct answer is fragmentation because the alternate heating and cooling of rocks can cause them to break apart into smaller pieces.