Decomposers in Nature Multiple Choice Questions Online pdf eBooks Download

Learn decomposers in nature MCQs, online O level biology MCQ for test prep. Microorganisms and applications in biotechnology quiz has multiple choice questions (MCQ), decomposers in nature quiz questions and answers as after decomposition of household sewage, dried substance results in, answer key help with choices as sludge, fertilizer, land fill and all of these problem solving for viva, competitive exam preparation, interview questions. Free study guide is to practice decomposers in nature quiz online with MCQs to practice test questions with answers.

MCQs on Decomposers in Nature Quiz pdf Download

MCQ. After decomposition of household sewage, dried substance results in

  1. sludge
  2. fertilizer
  3. land fill
  4. all of these

D

MCQ. Before discharging decomposed sewage into rivers and seas,

  1. water is filtered
  2. pathogens are removed
  3. pH of sewage is neutralized
  4. both A and B

D

MCQ. Inorganic gases released during decomposition include

  1. carbon dioxide
  2. hydrogen sulphide
  3. water vapors
  4. all of these

D

MCQ. Inorganic salts released during decomposition include

  1. nitrate
  2. suplhate
  3. phosphate
  4. all of these

D

MCQ. Biogas contains

  1. carbon monoxide
  2. carboxy acids
  3. methane
  4. ethane

C