What process results in the formation of lunar regolith?
Answer
Billions of years of micrometeorite bombardment and solar wind.
The creation of lunar regolith is a continuous geological process driven by constant bombardment from high-velocity micrometeorites and the relentless impact of solar wind particles. This prolonged exposure fractures and pulverizes the surface rock, churning it over billions of years into the fine, fragmented material that defines the regolith layer. This constant mechanical action, absent of atmospheric or hydrological erosion, is what creates its unique physical characteristics, such as sharp edges on the particles.
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