Which of the inner planets has a regolith that is largely the product of weathering?

Question

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Earth has a regolith that is largely the product of weathering, which is the breaking down of rocks and minerals by physical, chemical, and biological processes. The weathering process on Earth is aided by the presence of water, air, and living organisms, which contribute to the decomposition of rocks and the creation of soil. In contrast, Mercury and Mars have little to no atmosphere or water, which limits the amount of weathering that can occur on their surfaces. Venus has a thick atmosphere that produces intense weather conditions, including acid rain and high temperatures, but these processes do not produce a substantial amount of regolith.

Which of the Inner Planets Has a Regolith That Is