Question

Which of the following is a non-biodegradable pollutant?
A. Sewage
B. Sulphur dioxide
C. Oxides of nitrogen
D. Lead vapour

Answer 1

Hint: Biodegradable pollutants are pollutants that have the capability to degrade the materials. These are pollutants that are separated normally by miniature organisms and are not unsafe to the climate. Degradable pollutants are regularly utilized as compost.

Complete answer: Biodegradable pollutants: Those pollutants which can be separated into less complex, innocuous, substances in nature at the appointed time of time (by the activity of miniature organisms like certain microbes) are called biodegradable pollutants. Homegrown squanders (trash), pee, fecal issues, sewage, farming buildups, paper, wood, fabric, cows manure, animal bones, cowhide, fleece, vegetable stuff, or plants are biodegradable pollutants.
Non-biodegradable pollutants: Those pollutants which can't be separated into more straightforward, innocuous substances in nature are called non-biodegradable pollutants. DDT, plastics, polythene, lead vapour, silver foils, etc. are non-biodegradable pollutants.
Hence, option D is correct.

Note: The cycle of biodegradation can be partitioned into three phases: biodeterioration, bio fragmentation, and assimilation. Biodeterioration is once in a while portrayed as a surface-level debasement that adjusts the mechanical, physical, and compound properties of the material. This stage happens when the material is presented to abiotic factors in the outside climate and considers further debasement by debilitating the material's structure. Some abiotic factors that impact these underlying changes are pressure (mechanical), light, temperature, and synthetic substances in the climate.