In the Living Building Challenge certification for sustainable architecture, which of the following is NOT one of the seven performance categories (or 'petals') that buildings must satisfy?

Sustainability has become a cornerstone of modern architectural practice, with various certification systems pushing the boundaries of green design. Among these, the Living Building Challenge stands out as one of the most rigorous sustainability frameworks in architecture. Test your knowledge about this cutting-edge certification that's reshaping how architects approach environmental responsibility and resource efficiency in building design.

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Carbon Neutrality
Energy (requires net-positive energy)
Beauty (focuses on design features that elevate human spirits)
Water (requires net-zero water usage)