1.3 sustaining terrestrial ecosystems
label the soil profile:

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Accepted Answer

{ "quality": "clear", "question_count": 1, "skills_matched": [ "direct_cot", "blank_filling_formatter", "explain_then_answer", "quick" ], "needs_drawing": false, "concepts_used": [ "Soil Horizons" ], "new_concepts": [], "current_concepts": [ "Soil Horizons", "Terrestrial Ecosystems" ] } ## Identify the top layer pointing to the organic matter The arrow points directly to the plants and decomposing organic material on the very surface of the soil, which represents the litter layer or O horizon. ## Identify the upper soil layer grouped by the bracket The bracket spans the topsoil layer directly beneath the surface litter, which represents the topsoil or A horizon. Label the soil profile: Top line (arrow pointing to surface organic matter): Litter Bottom line (bracket indicating the upper soil layer): Topsoil { "subject": "Natural Science", "question_type": "Fill-in-the-blank", "knowledge_point": [ "Natural Science", "Earth Science", "Soil Horizons" ] }

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Question

Explanation:

Identify the top layer pointing to the organic matter

Identify the upper soil layer grouped by the bracket

Answer: