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Biology
Grade-7
Easy
Question
Pick the odd one out. (understand)
Bioremediation
Filtration
Decantation
Distillation
Hint:
The process which uses biological agents for purification.
The correct answer is: Bioremediation
Bioremediation, filtration, decantation and distillation are purification processes
Bioremediation is the process of reducing the toxic burden of the environment using biological agents such as plants and microbes. This is a biological method of purification.
Distillation is the process of separating liquids with their difference in boiling points
Filtration is the process of separating liquids from solids by passing through a filter membrane
Decantation is the process of separating liquids from solids by removing the liquid layer that is present on top without disturbing of the solid layer that has settled at the bottom