2017 · Q115
Which one of the following is NOT decomposed by bacterial action?
general-sciencebiotech-environment-science
- AVegetable remains
- BPlastic materials
- CAnimal carcasses
- DWastes of flowers
Explanation
Vegetable remains, animal carcasses and flower waste are biodegradable and are decomposed by bacteria. Plastics are synthetic polymers that bacteria cannot break down. Hence (B) is the one that is NOT decomposed.