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Why does a protostar continue to collapse as it is forming?
Untreated Sewage
Wastewater and human wastes that have not been processed or cleaned, often containing harmful pollutants and pathogens.
Freshwater Ecosystems
Aquatic systems of low salt concentration, including rivers, lakes, streams, ponds, and wetlands, supporting diverse life forms.
Groundwater
The water present beneath Earth's surface in soil pore spaces and in the fractures of rock formations.
Plant Nutrients
Essential minerals and elements required by plants for their growth, development, and physiological processes.
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