Biodegradable substances can be broken down by natural biological processes. Domestic sewage (organic matter), soap (made from fats/oils), and plant leaves are generally biodegradable. Lab detergents, especially older formulations or industrial types, often contain complex synthetic chemicals (surfactants, builders, etc.) that are resistant to microbial degradation and thus are not easily biodegradable compared to the other options.
Which one of the following is not bio-degradable:
Asked in RPSC RAS Prelims 1995 · Topic: Pollution (Plastic Pollution & Microplastics: Sources, ecological & health impacts, management strategies.)
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