eli5: What is soil, technically?

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Are soil and dirt one and the same, and is it possible to run out of either? Hypothetically speaking, is there a set amount of soil on Earth? How does more soil get generated?

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Anonymous 0 Comments

Think about this. The last ice age glacier retreated from Ohio about 14,000 years ago. The glaciers would have destroyed any soil underneath them. The soil depth where I live (region 7) is now 8 foot. https://soilhealth.osu.edu/soil-health-assessment/soil-type-history#:~:text=Region%207%20is%20the%20oldest%20glaciated%20area%20in,the%205-foot%20depth%20contributes%20li

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