Question

water pollution happens when harmful substances contaminate our water sources like rivers, lakes, and groundwater. these contaminants make water unsafe for drinking, swimming, or supporting fish and other aquatic life.
key point: human activities are the main cause of water pollution around the world.
think about it: what examples of water pollution have you seen in your community?
two main types of pollution sources
scientists classify water pollution into two major categories based on where the pollution comes from: please complete the sentences with the definitions

1. point source pollution:
2. nonpoint source pollution:

why does this matter? understanding the difference helps us create better solutions to protect our water.

Explanation:

Point source pollution is pollution that comes from a single, identifiable source, such as a pipe from a factory. Nonpoint source pollution is pollution that comes from many diffuse sources, such as runoff from agricultural fields or urban areas.

Answer:

1. Point Source Pollution: Pollution that comes from a single, identifiable source.
2. Nonpoint Source Pollution: Pollution that comes from many diffuse sources.