Water covers nearly 71% of Earth’s surface. However, most of this water is salt water, not fresh water. Less than 1% of the water on the planet is usable fresh water. Pollution has contaminated many fresh water supplies. Point source pollution is pollution that comes from a known and specific location, such as the factory pipes. Nonpoint source pollution is pollution that does not have a specific point of origin. Runoff, the water that flows over the land rather than seeping into the ground, often carries nonpoint source pollution. Pollution can also change the atmosphere and disrupt the natural cycle.
Pollution Report Rubric
Chemistry in March