Question

Which of the following decreases the risk of secondary contamination in the physical method of soil remediation?

(a) Concentration

(b) Reduced cost

(c) Quorum quenching

(d) Lyophilization

This question was addressed to me at a job interview.

My question is taken from Microbial Transformations of Pesticides in division Microbial Transformations of Pesticides of Environmental Biotechnology

Answer 1

The correct answer is (a) Concentration

To elaborate: Concentration of contaminants reduces the further risk of contamination as it involves addition of no reagents, lower energy demands lead to reduction in cost level but doesn’t reduce chances of secondary contamination, quorum quenching leads to inhibition of quorum sensing and lyophilization is a process of freeze drying.