Identify the three individuals whose investigations led to the banning of the use of dichlorodipheny/trichloroethane (DDT) as a pesticide in Europe and North America
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Identify the three individuals whose investigations led to the banning of the use of dichlorodipheny/trichloroethane (DDT) as a pesticide in Europe and North America
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- Choose the combination of answers that most accurately completes the statement.Which of the following is an approved sterilant? a. chlorhexidine c. ethylene oxide b. betadyne d. ethyl alcoholEven though scientists have demonstrated success in using genetically modified bacteria to detect explosives, why is this method of mine-finding still considered a, "work in progress"? Write at least 4 sentencesInsecticides play important role in insect pest control, write down a comprehensive note on the classifications of insecticide based on mode of action, mode of entry and based on chemical nature
- Compare between the two heavy metals cadmium (Cd) and arsenic (As) regarding the following points: - Sources - Routes of exposure - Mechanism of toxicity - Prevention and treatmentA group of pesticides are in use at present,these include some types of inorganic chemicals,organic chemicals and other substances.Explain Four major groups of pesticides that give advantages and disadvantages to our life.Choose the combination of answers that most accurately completes the statement. The most versatile method of sterilizing heat-sensitive liquids is a. UV radiation c. beta propiolactone b. exposure to ozone d. fi ltration