kay3993 kay3993 21-01-2021 Biology contestada Why are construction sites considered major sources of water pollution?" 1 point They introduce high levels of salt into local water sources. Soil erosion rates accelerate dramatically, impacting water quality in streams and rivers They cause sinkholes to form, which pollute local water sources. Sawdust leaches into the soil, causing the water that runs into rivers and streams to be cloudy and full of particles