Nonpoint Source Point Source Sediments Natural Resource navigate station – pollution navigate station – pollution T E Point Source Sediments start Anything that occurs naturally in the environment and is used by people . This pollution source is widely spread and cannot be tied to a specific origin. © the science duo © the science duo navigate station – pollution navigate station – pollution Natural Resource H Nonpoint Source Y The contamination of Earth’s land, water, or air. A specific pollution source can be identified © the science duo © the science duo

Ecological Footprint Conservation Sustainable Use Pollution navigate station – pollution navigate station – pollution R Ecological Footprint F Pollution Using resources in ways that maintain the resources for a certain period of time. The practice of managing the use of resources wisely so that they last longer. © the science duo © the science duo navigate station – pollution navigate station – pollution E U Sustainable Use Conservation The amount of land and water that individuals use to meet their resource needs. The advance of desert-like conditions into areas that were once fertile. © the science duo © the science duo

Ozone Emissions Land Reclamation Desertification navigate station – pollution navigate station – pollution L O Desertification Emissions The process of restoring an area of land to a more productive state. When gases react in the sunlight and produce a layer of oxygen in the air. © the science duo © the science duo navigate station – pollution navigate station – pollution L F Land Reclamation Ozone Pollutants released into the air. Precipitation that is more acidic than normal because of air pollution. © the science duo © the science duo

Pesticides Sewage Acid Rain Groundwater navigate station – pollution navigate station – pollution C N Acid Rain Pesticides Water stored in soil and rocks beneath the Earth. The water and human wastes that are washed down sinks, showers, and toilets. © the science duo © the science duo navigate station – pollution navigate station – pollution A S Sewage Groundwater Particles of rock and sand that settle in our water. Chemicals that kill crop-destroying organisms. © the science duo © the science duo