No they are not. Biodegrable means that they will break down simply via the effects of the environment; sun, rain, etc., But since CDs are plastic I would think they are recyclable i.e. they can be mechanically broken down and remade into some other product...perhaps a water bottle.
How long it takes for an aluminum can to biodegrade
It takes 1000 years for it too biodegrade and that is if it is buried. :)
2years
100 millennium
a long time.
5 to 10 years.
Eraser is made out of rubber. If exposed under the sun, an eraser will take between 50 to 80 years to biodegrade.
A disc's lifetime is measured by the number of years for which the medium can store the data successfully in it. A typical cd exists for around 217 years - so that would be its lifetime.
1o years
A banana peel typically takes about 2-5 weeks to biodegrade, depending on environmental conditions such as temperature and moisture.
10 years
A crisp packet can take anywhere from 75 to 100 years to biodegrade due to its plastic and aluminum foil components, which are not easily broken down by natural processes. Recycling the crisp packet is a more environmentally friendly option to reduce its impact on the environment.