Question

turbidity in the water mostly comes from which 2 sources?

farming
over fertilization
sewer pipes
construction sites
animal waste

Explanation:

Define turbidity and its primary causes

Turbidity is the measure of relative clarity of a liquid, primarily caused by suspended solids such as soil, silt, and clay particles.

Evaluate the given options

• Farming: Agricultural activities involve soil disturbance, leading to significant soil erosion and sediment runoff into water bodies. This is a major source of turbidity.
• Over fertilization: Leads to nutrient runoff and eutrophication, but is not a direct primary source of physical suspended sediment compared to erosion.
• Sewer pipes: Primarily contribute organic waste, pathogens, and chemical pollutants rather than massive sediment loads.
• Construction sites: Land clearing and excavation at construction sites expose loose soil, making them a primary source of heavy sediment runoff and high turbidity during rain events.
• Animal waste: Primarily contributes bacteria and nutrients rather than suspended physical sediments.

Select the top two sources

Farming and construction sites are the two most significant contributors of suspended sediment runoff that directly cause turbidity in water bodies.

Answer:

• Farming (Correct answer)
• Over fertilization
• Sewer pipes
• Construction sites (Correct answer)
• Animal waste