Fact from movie I am checking: (fact is in question form) Do leaves increase Carbon Dioxide levels?
1st source: http://www.ars.usda.gov/research/publications/publications.htm?seq_no_115=144113. There are two authors of this article and they are Michael Robinson and Richard Sicher. This source has one credential and that is the International Journal of Plant Science. This is a credible source because it has scientific words and instead of using the word carbon dioxide the authors use the element symbol CO2 to say Carbon Dioxide. This source says that the fact I am checking that is " Do leaves increase Carbon Dioxide levels?" is not a fact and that it is not true. In the article it says that Carbon Dioxide levels are harmful to leaves and other types of plants because Carbon Dioxide levels messes up the leaves and plants chloroplast which is used in a plant to make food which has to do with photosynthesis. I don't know if I believe this source because this website really has to do with the United States department of Agriculture and the source on this website really doesn't focus on carbon dioxide, it focuses on plants. I think I will have to see what the other two sources I find say. I guess I will determine if I believe this fact and the other facts based on the highest number of sources that thinks it is a fact or the highest number of sources that think it is not a fact.
2nd source: http://www.futurepundit.com/archives/001938.html. The author of this source is Randall Parker. There are no credentials for this source. The source is credible because it uses scientific words, things that won't happen until years after this year, and the article has main points to each paragraph in the article. The source says that ( just like the first source), that carbon dioxide is harming leaves and other plants. I think I believe the source because the first source said that carbon dioxide was harming leaves and this second source says that carbon dioxide is harming leaves. I think I will wait to say whether I believe this source until I find a third source and see what it says.
3rd source: http://www.physorg.com/news153422058.html. The author of this source is The University of Illinois at Urbana-Champaign. The Credentials that this source has is researchers form the University of Illinois and the U.S. Department of Agriculture. This Source is very credible because in the article many scientific words are used, instead of using the word Carbon Dioxide, the writers of this article use Carbon Dioxide's scientific abbreviation CO2, and it talks about the scientific information about plants to help explain the main point of the writers article. The source says that plants draw Carbon Dioxide from the atmosphere and make sugars from the carbon dioxide. It is saying the same thing that my first two sources were saying, and that was that leafs are not increasing Carbon Dioxide levels at all but they didn't say that in their articles just like that word for word. I don't believe the source because if the first two sources are saying the same thing this source is saying, it makes me not believe.
After reading the sources that I did and what the sources indicated I don't believe the fact "Do Leafs increase Carbon Dioxide levels. I think it is not true and the movie was not accurate about this fact.
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