which of the following is more eco-friendly than the others?
1.Burning of Petrol
2.Burning of COAL.
3.Burning of Charcoal
4.Burning Of Cowdung.
science - bobpursley, Friday, November 1, 2013 at 9:10am
Isn't cowdung a waste product? Petrol, and coal are non renewable fuels, charcoal is made from trees. In general, trees are nice to the environment and we don't want to burn them.
science - ajay, Thursday, November 21, 2013 at 9:13am
burning of petrol
science - docter, Friday, November 22, 2013 at 10:23pm
burning of cow dung.(4.)
science - Gurleen, Saturday, November 23, 2013 at 1:15am
Burning of cow dung