Bioaccumulation is the process by which chemicals are stored in the tissues of living organisms. It is the accumulation of chemicals in the tissue of organisms through any route including, respiration, ingestion or direct contact with contaminated water, sediment and pore water in the sediment. These chemical substances include, pesticides or other chemicals.
So we can protect ourselves from the same virus if it attacks again in the future
4 mps increase in 10 seconds = 2 mps increase in 5 seconds = .4meters/2sec
