Carbon+Dioxide7

**Background Information**
 * Carbon Dioxide **
 * Plants photosynthesize and organisms absorb carbonate mineral from the water, carbon dioxide is removed from a stream or river.


 * Most Carbon Dioxide that enters a stream or river comes from the Earths Atmosphere or ground water systems.


 * Decomposition and respiration are other sources of Carbon Dioxide.


 * What is the Carbon Dioxide? **
 * Carbon Dioxide is a gas at standard temperature and pressure and exists in Earth's atmosphere.


 * It is produced during respiration by plants and by all animals, fungi and microorganisms that depend either directly or indirectly on plants for food.


 * Carbon Dioxide is a chemical compound composed of two oxygen atoms bonded to a single carbon atom.

How have humans activities impacted carbon dioxide? **
 * Humans have been increasing the amount of carbon dioxide in the air by burning fossil fuels, producing cement and by carrying out land clearing and forest combustion.

**How does carbon dioxide affect wildlife?**
 * It affects wildlife by plants using carbon dioxide during photosynthesis to make sugars, which may either be consumed in respirtation or used as the raw material to produce other organic compounds.
 * Aquatic plant life depends upon carbon dioxide and bicarbonates in water for growth.

**Uses**
 * Drinks
 * Foods
 * Fire extinguisher
 * Welding
 * Caffeine removal
 * Pharmaceutical and other chemical processing
 * Agricultural and biological applications
 * Lasers
 * Polymers and plastics
 * Oil recovery
 * As refrigerants
 * Coal bed methane recovery
 * Wine making
 * pH control