The Millennium Ecosystem Assessment describes the following major categories of ecosystem services: provisioning, supporting, regulating, preserving, and cultural. Which one of the following is a supporting service?
Detailed Explanation:
Millennium Ecosystem Assessment (2005) classifies ecosystem services into four categories: Provisioning, Regulating, Supporting, and Cultural.
Supporting Services are foundational services necessary for production of all other ecosystem services, including nutrient cycling, soil formation, primary production, and photosynthesis.
Provisioning Services include food, water, timber, and fiber production (Option 1).
Regulating Services include climate regulation, disease control, water purification, and crop pollination (Options 2 and part of 3).
Cultural Services include spiritual, recreational, aesthetic, and educational benefits (Option 4's diversity maintenance also overlaps with supporting).
Option 3 is correct because nutrient cycling is the definitive supporting service listed, even though pollination is technically classified as a regulating service in the original MA framework.
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