Question

the rock cycle relies on ___ to convert rock into usable particles to form other types of rock. pressure extreme heat burial erosion

Explanation:

Erosion is the process that breaks down rocks into smaller particles. Pressure and extreme heat are involved in transforming rocks (e.g., in the formation of metamorphic rocks from existing rocks), but they don't convert rocks into particles. Burial is part of the process for sedimentary rock formation (e.g., compaction after sediment deposition), but it's not about converting rock into particles. Erosion (through agents like wind, water, ice) physically and chemically breaks rocks into usable particles that can then be transported and deposited to form sedimentary rocks (a key part of the rock cycle).

Answer:

Erosion