Man and Environment Multiple Choice Questions and Answers 21 PDF Download

Learn man and environment MCQs, grade 10 biology test 21 for online learning courses and test prep. Ecology multiple choice questions (MCQs), man and environment quiz questions and answers include biology worksheets for online what is meant by biology courses distance learning.

Biology multiple choice questions (MCQ): considering earth's ecosystem, producers are called with options heterotrophs, autotrophs, tertiary autotrophs and secondary autotrophs, ecology quiz with online competency based interview questions and answers to answer during teachers jobs' tests. Free biology study guide to learn ecology quiz to attempt multiple choice questions based test.

MCQs on Man and Environment Worksheets 21 Quiz PDF Download

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