Research was done from the following websites :
http://www.brighthubeducation.com/middle-school-science-lessons/7877-build-an-eco-column-mini-terrarium/
hptt://sites.google.com/a/hightechhigh.org/sstevens/home/junior-year/environmental-science/environmental-disturbance-eco-column-project
https://sites.google.com/site/pariseauenvironmentalscience/eco-column-lab
http://grade9eco-column.blogspot.com/
https://sites.google.com/site/dubesenvironmentalplan/eco-column
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