WebPrimary Pollutants: Which persist in the form in which they are added to the environment for ex. DDT, Plastic. Secondary Pollutants: ... PhotoChemical Smog : It is a secondary pollutant, resulting when two pollutants, nitrogen … Webwhy is DDT a persistent organic pollutant? a. DDT is very stable and 50% of the original concentration can remain in soil for 15 yrs after initial application b. DDT can be used to control diseases like malaria and typhus that are spread by insects ... b. primary producers c. parasites d. secondary consumers e. autotrophs. d. secondary consumers.
APES Unit IV - Pollution and Human Health Flashcards
WebDDT and Aluminium cans are examples of _____. (a) Primary Pollutants (b) Secondary pollutants (c) Biodegradable Pollutants (d) Non Biodegradable Pollutants 13. D Which of the following agents is mainly responsible for the secondary pollutants? (a) Smog and Ozone (b) Sulphur trioxide (c) Nitrogen dioxide (d) All of the above 14. A WebApr 3, 2024 · DDT (dichloro-diphenyl-trichloroethane) was developed as the first of the modern synthetic insecticides in the 1940s. It was initially used with great effect to … increase in facial hair female
Primary and Secondary Pollutants - Green Chemistry
WebApr 9, 2024 · Air pollutants from various industries are a cause of major concern and they can be natural or man-made. They can be classified as primary and secondary pollutants. >Primary pollutants- These are directly emitted from processes like volcanic eruptions, factories, fossil fuel consumption, etc. Web→ when big amounts of pollutants are released causing lots of harm The Bhopal incident is an example - released 45 tonnes of chemicals, 5k died within 24h and 20k overall. Long term effects like lung diseases, lifelong disabilities and disabled newborns Chronic → Pollutant released in small amounts over a long period of time Air pollution is an … WebSolution Verified by Toppr Correct option is A) A primary pollutant is an air pollutant emitted directly from a source. A secondary pollutant is not directly emitted as such, but forms when other pollutants (primary pollutants) react in the atmosphere. increase in km and vmax