Why do the sons of haemophilic father never llur munDDT was known to be a highly effective insecticide in the past.Why did it not wipe out all mosquito populationof the nlanet"? Give two reasons forits degradat

Why do the sons of haemophilic father never llur munDDT was known to b

1.	Why do the sons of haemophilic father never llur munDDT was known to be a highly effective insecticide in the past.Why did it not wipe out all mosquito populationof the nlanet"? Give two reasons forits degradat
Answer» Dichlorodiphenyltrichloroethane, commonly known asDDT, is a colorless, tasteless, and almost odorlesscrystallinechemical compound, anorganochlorine, originally developed as aninsecticide, and ultimately becoming infamous for its environmental impacts. It was first synthesized in 1874. DDT's insecticidal action was discovered by the Swiss chemistPaul Hermann Müllerin 1939. DDT was used in the second half ofWorld War IIto controlmalariaandtyphusamong civilians and troops. Müller was awarded theNobel Prize in Physiology or Medicine"for his discovery of the high efficiency of DDT as a contact poison against severalarthropods" in 1948.