Assess students' understanding of how deforestation alters the water cycle (evapotranspiration, runoff, infiltration, local flooding), increases soil erosion (loss of topsoil, sedimentation, agricultural impacts), and reduces local biodiversity (habitat loss, species decline, disrupted ecosystem services). Expect cause–effect explanations, interpretation of a simple scenario or data, and identification of basic mitigation strategies (reforestation, agroforestry, erosion control). Designed for grades 6–8; medium difficulty emphasizing conceptual understanding and simple analysis.