Bioo

|Name: |Registration: |
|Course title:|Teacher’s name: |
|Biology I | ||Module: |Activity: |
|Module 4 |Topic13 |
|Date: 28/11/11 |Team: NA ||Bibliography: ||http://xn--diseoydesarrolloweb-y3b.com/blog-nuestro-planeta/degradacion-de-residuos-bolsas-de-plastico/ 28/11/11 |
|http://www.centrohermes.com.ar/lecturaamena/Interesante/degradacion_productos.htm 28/11/11 |Instructions:
I. Research the Digital Library and other reliable sources about how long the following objects take to degrade:
a. Chewing gum (synthetic).
5 Five years
b.Plastic bags.
From 100 to 1000 years
c. Paper.
3 months
d. Plastic caps.
100 years
e. Metal bottle caps.
30 years

f. Cigarette butts.
From 1 to 5 yearsg. Tennis shoes.
200 years

h. Disposable diapers.

100 years
II. What are the raw materials required to produce these objects?
Petroleum and natural gas

III. What determinesthe degradation time of these objects?
IV. Where is the time of degradation of certain materials shortened, on the street, in the fields, in hot or cold places? Why?
V. How do bioplastics work...