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Materia |
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ultraviolet light [1] |
undergraduate students [1] |
Underground water [1] |
undernourishment [1] |
UNICACH [1] |
Unidad de Manejo y Aprovechamiento (uma) [1] |
Universal Soil Loss Equation [1] |
universitarios [1] |
universitary students [1] |
urban residues [1] |
Urban solid waste [1] |
urbanism [1] |
urbanización [1] |
Use [2] |
use and management of plants [1] |
use of flora [1] |
use of natural resources [1] |
use of space [1] |
useful multipurpose plants [1] |
Uses [1] |