First eLearning Homework

My first inquiry is: How CO2 affects where we live. CO2 affects us really much. Not only in big things such as Global Warming, but also in small things such as affecting where we livee. CO2 can affect the people who live around us that grow crops. CO2 affects crops growth by slowing the crops growth. If the crops growths are slowing down, it will take longer time to harvest it. People who depend on their crops will have a lot of problem. Plants actually use CO2 for their photosynthesis. They use it as a nutrient. But only trees with chlorophyll can do that and that’s the problem because not all crops have chlorophyll. So that is why CO2 is bad for crops.

CO2 is not always bad for us. Sometimes, it can be useful for us. It is used in soda drinksks – which many people drink. It makes soda drinks fizzy. CO2 is also used in yeast and baking powder. CO2 is the one that causes the rising of the bread dough. CO2 can be used to soften water. In some fire extinguishers, CO2 is used to smother fire. The solid form of CO2, dry ice, is used as a refrigerating agent.


Bibliography:

Henderson, S. (1994) How Elevated CO2 Affects Plants
http://explorer.learngen.org/explorer-db/html/836283657-81ED7D4C.html accessed on 26/04/07

Priva Agro (2002) CO2 Meter
http://priva-agro.live.ism.nl/pages/content/S1/21150000002652-2-10000000001651.aspx accessed on 26/04/07

The Columbia Electronic Encyclopedia (2007) Carbon Dioxide
http://www.askforkids.com/fr?u=http%3A%2F%2Fwww.factmonster.com%2Fce6%2Fsci%2FA0810371.html&bu=http%3A%2F%2Fwww.askforkids.com%2Fweb%3Fq%3DHow+CO2+affects+where+we+live%26dm%3Dlang%26page%3D1&q=How+CO2+affects+where+we+live&o=0&l=dir&s=k&dm=lang&qt=0 accessed on 26/04/07

The pictures were taken from:

http://hoover.archives.gov/LIW/DeSmet/images/crops-cornfield.jpg accessed on 26/04/07

http://www1.istockphoto.com/file_thumbview_approve/861986/2/istockphoto_861986_soda_drinks.jpg accessed on 26/04/07