Effects of Human Activity on Ecosystem Learning App | IGCSE O Level Biology Quiz e-Book PDF

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Effects of Human Activity on Ecosystem Quiz with Answers PDF Download – Test 19

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Free Effects of Human Activity on Ecosystem Quiz App (Android & iOS) with MCQ: "DDT (dichloro-diphenyl-trichloroethane: C14H9Cl5) is a form of"; with answers: herbicide, insecticide, pesticides, and parasiticides. Learn Genetically Modified Organisms Quiz Questions, download Google Book (Free Chapter) for biology revision sessions.

Effects of Human Activity on Ecosystem Exam Questions and Answers PDF Download: Test 19

MCQ 91: DDT (dichloro-diphenyl-trichloroethane: C14H9Cl5) is a form of:

  1. insecticide
  2. herbicide
  3. pesticides
  4. parasiticides

MCQ 92: In tubifax worms, the tolerance range for oxygen:

  1. is very low
  2. is very high
  3. is zero
  4. is 100%

MCQ 93: All are wrong about Bacteria, but:

  1. cannot grow in fertilized soil
  2. cannot degrade DDT
  3. degrade DDT into simpler substances
  4. digest white blood cells

MCQ 94: Pollutants from natural cause can:

  1. avoided if proper precautions are taken
  2. not avoided no matter what precautions are taken
  3. recycled
  4. stored

MCQ 95: Inorganic wastes may include:

  1. mercury
  2. arsenic
  3. cadmium
  4. all of above

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