you can "point" to the sounce - point source pollution, "people pollution" hard to tell the source - non point source pollution, area of land that drains to a water body - watershed, drains directly to a stream - storm drain, should be picked up - pet waste, cars may pollute streams if not repaired - oil leaks, chemicals that poison insects - pesticides, chemicals fed to plants to make them grow - fertilizer, needed in water for animals and plants to live - dissolved oxygen, organisms that live at the bottom of streams - benthic macroinvertebrates, water body where salt and fresh water mix - estuary, water flowing off the land carrying pollutants - runoff, soil that is carried away by water or wind - erosion, 99% of earth's water is un useable for people - limited water resources, when brushing teeth - turn off the water, taking shorter showers - can save many gallons of water, a place that provides for an organism's needs - habitat, how water is reused over and over again - the Water Cycle, living things whose homes are watery - aquatic organisms, worth saving - the Earth!,

Watershed Matching

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