Question

Which of the following material takes the longest time for biodegradation?
a. Cotton
b. Paper
c. Bone
d. Jute


NCERT Class XII
Biology - Main Course Book

Chapter 16. Environmental Issues

Answer 1

Bone takes the longest time for biodegradation since the molecules in it are tightly packed and so strong since they contain calcium and phosporous

Answer 2

Answer:

The material takes the longest time for bio-degradation is the BONE

Option C

Explanation:

Biodegradable means whether an object can be broken down into simpler fragments by microorganisms or not. Organic compounds are usually broken down faster than inorganic substances. Plastic, metals, and polymer are non-biodegradable.

Among all these bone takes the maximum time for degradation. This is because bone is a complex made up of minerals, organic and inorganic compounds. All the other compounds containing only organic compounds hence they are degraded very rapidly.