Question

what environmental issue can be worsened by building dams in new mexicos water management? a increased soil erosion and sediment deposition b enhanced flood control and reduced flood risk c fragmentation of aquatic habitats and disruption of native fish migration d preservation of pristine natural landscapes

Explanation:

Dams can disrupt natural river - flow patterns. They trap sediments that would otherwise be transported downstream, leading to increased soil erosion upstream as the natural sediment - replenishment process is interrupted. Also, reduced sediment deposition downstream can affect riverbank stability and aquatic habitats. Flood control (option B) is a benefit of dams, not a worsening environmental issue. Fragmentation of habitats (option C) is more related to blocking fish migration but is not as directly related to the overall soil - sediment issue as option A. Preservation of natural landscapes (option D) is not worsened by dams in the context of soil erosion and sediment deposition.

Answer:

A. Increased soil erosion and sediment deposition