Question
This soil type is split into chernozem, kastanozem, phaeozem, and umbrisol by the World Reference Base. For 10 points each:
[10h] Name this dark and exceptionally fertile soil type that is defined by very high concentrations of organic matter in the A horizon, creating a surface layer known as this soil type’s namesake epipedon.
ANSWER: mollisol [accept mollic epipedon]
[10m] In North America, chernozem is found in the “aspen parkland” between the Canadian prairies and this soil type to its north. The leeching of iron and aluminum creates an E horizon bleached of color in this soil type, which is typically found in coniferous forests and taigas.
ANSWER: podzol [or spodosol; accept podzolic]
[10e] North of the Canadian taiga is the tundra, which is defined by this type of soil that is frozen year-round.
ANSWER: permafrost [accept gelisol]
<Science - Other Science - Earth Science>
Summary
| 2024 ARGOS @ Brandeis | 03/22/2025 | Y | 3 | 10.00 | 100% | 0% | 0% |
| 2024 ARGOS @ Chicago | 11/23/2024 | Y | 6 | 13.33 | 100% | 33% | 0% |
| 2024 ARGOS @ Christ's College | 12/14/2024 | Y | 3 | 16.67 | 100% | 67% | 0% |
| 2024 ARGOS @ Columbia | 11/23/2024 | Y | 3 | 13.33 | 100% | 33% | 0% |
| 2024 ARGOS @ McMaster | 11/17/2024 | Y | 5 | 12.00 | 100% | 20% | 0% |
| 2024 ARGOS @ Stanford | 02/22/2025 | Y | 3 | 10.00 | 100% | 0% | 0% |
| 2024 ARGOS Online | 03/22/2025 | Y | 3 | 20.00 | 100% | 100% | 0% |
Data
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