Hansen, J.A. (1996). Management of Urban Biodegradable waste.

List of sources (= reliable websites, journals, books etc.)

– Hansen, J.A. (1996). Management of Urban Biodegradable waste.

– Sushil,D. (1990). Waste Management.

– Michel Gunther. Biodegradable and Non-biodegradable materials. wwwf.panda.org

– www.science.jrank.org

plan: * Introduction:

– Usage areas of both biodegradable and non biodegradable materials.

– Their role on affecting the environment and the contemporary life.

– we should reduce using non-biodegradable products more than biodegradable products as they more harmful.

* Main body:

~Comparative analysis between the two types of materials:

-The definition ,characteristics, composition, and examples on biodegradable and non biodegradable products

-positive and negative Impacts on the environment.

– How to decrease the negative impacts of non-biodegradable products.

-Solutions of their impacts.

*Conclusion:

– My opinion about the two types of materials.

– further solutions and my suggestions about this issue.

– Discussing the role of the advanced technology.