We have cleaned the beach next to our school and have made a research on the time needed to get decomposed the materials we've collected.
Here are some examples...
- Plastic bottles: 70-450 years
- Plastic bag: 500-1000 years
- Tin can: around 50 years
- Leather shoes: 25-40 years
- Cotton: 1-5 months
- Rope: 3-14 months
- Cigarette: 1-12 years
- Milk packet (tetra) covers and drink packets: 5 years
- Nylon clothes: 30-40 years
- Glass bottles: 1,000,000 years
- Fishing line: 600 years.
- Glass bottle; 1-2 million years
- Aluminum can: 200 years
Scary...no?
