Man and Environment Multiple Choice Questions Test 21 Tests pdf Download

Practice biology test 21 on man and environment MCQs, grade 10 ecology multiple choice questions and answers. Ecology revision test has biology worksheets, answer key with choices as heterotrophs, autotrophs, tertiary autotrophs and secondary autotrophs of multiple choice questions (MCQ) with ecology quiz as considering earth's ecosystem, producers are called for competitive exam prep, viva interview questions. Free biology study guide to learn ecology quiz to attempt multiple choice questions based test.

MCQs on Man and Environment Quiz pdf Download Worksheets 21

MCQ. Considering Earth's ecosystem, producers are called

  1. autotrophs
  2. heterotrophs
  3. tertiary autotrophs
  4. secondary autotrophs


MCQ. Considering kind of symbiosis, classification of parasites includes

  1. endoparasites
  2. ectoparasites
  3. digestion parasites
  4. both a and b


MCQ. In biosphere, principal decomposers are

  1. birds
  2. grasshoppers
  3. protozoan
  4. fungi and bacteria


MCQ. Petroleum burning in air leads to the

  1. methane
  2. oxygen
  3. sulphur dioxide
  4. nitrogen dioxide


MCQ. Process in which nitrites and nitrates are reduced into nitrogen gas by denitrification of bacteria is called

  1. ammonification
  2. assimilation
  3. nitrification
  4. denitrification