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IGCSE O Level Biology Certification Exam Tests

IGCSE O Level Biology Practice Test 227

Pollution: Sewage as Cause Quiz Questions with Answers PDF Download - 227

The Pollution Sewage as Cause Trivia Questions and Answers PDF (Pollution Sewage as Cause Quiz Answers PDF e-Book) download Ch. 7-227 to solve IGCSE O Level Biology Practice Tests. Learn Effects of Human Activity on Ecosystem MCQ Questions PDF, Pollution Sewage as Cause Multiple Choice Questions (MCQ Quiz) to learn online GCSE courses. The Pollution: Sewage as Cause Trivia App Download: Free educational app for pollution: sewage as cause, pollution: carbon monoxide, mammalian skin, human respiration, wind pollination test prep for best online GRE prep class.

The Trivia MCQ: An excellent habitat for bacterial growth is; "Pollution: Sewage as Cause" App (iOS & Android) with answers: Burning of garbage; Chlorofluorocarbons based products; Untreated sewage; for best online GRE prep class. Study Effects of Human Activity on Ecosystem Questions and Answers, Google eBook to download free sample for online bachelor degree programs.

Pollution: Sewage as Cause Quiz with Answers PDF Download: MCQs 227

MCQ 1131:

An excellent habitat for bacterial growth is

  1. chlorofluorocarbons based products
  2. burning of garbage
  3. untreated sewage
  4. all of above
MCQ 1132:

If heat radiated from the Earths surface is retained, the outcome will be

  1. formation of smog
  2. green house effect
  3. van der Walls forces of attraction among smoke particles
  4. all of above
MCQ 1133:

In mammals like cats and foxes, the inner hair layer acts as

  1. guard cells
  2. insulator
  3. performs both guarding and insulating functions
  4. conductor
MCQ 1134:

Trachea divides into two

  1. cilia
  2. bronchus
  3. bronchi
  4. pleura
MCQ 1135:

In grass, the function of filament is to

  1. hold pollens firmly
  2. stay inside the bract
  3. expose anther to wind
  4. hold grass firm in the soil

IGCSE O Level Biology Exam Prep Tests

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