Dinosaurs lived and evolved for over 185 million years unitl they became extinct. The cause has not been proven yet, but many believe that an asteroid Over 9 miles wide hit the earth In the Gulf of Mexico. Just one over 5,000 facts from the site.

Recycling, bio fuels, global warming, and energy conservation. Other related topics may be, carbon dioxside questions, energy reduction, questions on trees and plants, algae(the wonder plant), and what u can do to help or get involved.

management science, there s no better way.high life with management science