Which one of the following is not a part of biotic environment:
Insect, air, plants, birds?
Air
The following chart shows the time taken for commonly used materials to biodegrade:
Item |
Time taken to biodegrade |
Cotton rags |
1-5 months |
Paper |
2-5 months |
Rope |
3-14 months |
Orange peels |
6 months |
Wool socks |
1-5 years |
Plastic coated paper milk cartons |
5 years |
Leather shoes |
25-40 years |
Nylon fabric |
30-40 years |
Tin cans |
50-100 years |
Aluminium cans |
80-100 years |
Glass bottles |
1 million years |
Plastic bottles |
Do not biodegrade at all |