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.


“ My opinion about the two types of materials.

“ further solutions and my suggestions about this issue.

“ Discussing the role of the advanced technology.