Question

1. you find some soil that is mostly made of clay and silt, but no sand. how might this soil have formed?

Explanation:

This soil likely formed through intense chemical weathering of parent rock (like shale or granite) that broke down larger mineral particles into fine clay and silt. Additionally, long-term water action (such as consistent rain or river flooding) may have eroded and carried away any sand-sized particles, leaving only the finer clay and silt behind. It could also develop in low-lying, poorly drained areas where sand particles are not deposited, and fine particles accumulate over time.

Answer:

This soil most likely formed from intense chemical weathering of parent rock that reduced minerals to fine clay and silt, combined with water erosion or deposition processes that removed or prevented sand-sized particles from accumulating (e.g., consistent water washing away sand, or formation in low-lying areas where only fine sediments collect).