Which Sequence Best Describes the Order of Soil Horizons in Well-Developed

Question

Which sequence best describes the order of soil horizons in well-developed soil from top to bottom?
A) Organic matter, mineral nutrients, clay, bedrock
B) Organic matter, clay, mineral nutrients, detritus
C) Mineral nutrients, organic matter, bedrock, clay
D) Mineral nutrients, organic matter, clay, bedrock

Accepted Answer

The correct sequence of soil horizons from top to bottom is: Organic matter (O horizon), mineral nutrients (A horizon), clay (B horizon), and bedrock (C horizon).