Man and Environment Multiple Choice Questions 21 PDF Download

Learn man and environment MCQs, grade 10 biology test 21 for online courses learning and test prep, ecology multiple choice questions and answers. Ecology revision test includes biology worksheets to learn for online biological science degree prep.

Biology multiple choice questions (MCQ) on considering earth's ecosystem, producers are called with options heterotrophs, autotrophs, tertiary autotrophs and secondary autotrophs, ecology quiz for competitive exam prep, viva interview questions with answers key. 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