Which structural unit present in a detergent makes it non-biodegradable?

Which one is non-biodegradable

What is the structural unit present in silicates ?

The structural unit present in pyrosilicates is:

Polythene is a non- biodegradable pollutant .

Correct the following statements by changing the underlined part of the statement (Do not change the whole statement) Synthetic detergents are easily biodegradable.

Which is not true for a detergent molecule ?

Non-metals present in borax are:

What are biodegradable and non-biodegradable pollutants ?

Account for the following: Detergents are non-biodegradable while soaps are biodegradable.

Why are some substances biodegradable and some non-biodegradable?