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General Knowledge > General Science

BIODIVERSITY AND CONSERVATION MCQs

Total Questions : 21 | Page 2 of 3 pages
Question 11. How many species are estimated to be living on Earth?
  1.    between 10,000 and 100,000
  2.    between 1 and 2 million
  3.    between 500,000 and 1 million
  4.    between 10 and 50 million
 Discuss Question
Answer: Option D. -> between 10 and 50 million
Question 12. What are the five major causes of biodiversity loss?
  1.    deforestation, climate change, farming, invasive species, pollution
  2.    ocean acidification, invasive species, species extinction, over harvesting, climate change
  3.    habitat alteration, invasive species, pollution, over harvesting, climate change
  4.    climate change, urban sprawl, invasive species, over population, pollution
 Discuss Question
Answer: Option C. -> habitat alteration, invasive species, pollution, over harvesting, climate change
Question 13. The easiest component of biodiversity to measure is
  1.    ecosystem diversity
  2.    species diversity
  3.    genetic diversity
  4.    ecosystem health
 Discuss Question
Answer: Option B. -> species diversity
Question 14. Which product is often derived from the natural environment?
  1.    cooking oiol
  2.    medicines
  3.    fuel
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
Question 15. High levels of biodiversity tend to
  1.    have little to no effect on ecosystems
  2.    decrease an ecosystem's resistance
  3.    make an ecosystem less resilient
  4.    increase the stability of an ecosystem
 Discuss Question
Answer: Option D. -> increase the stability of an ecosystem
Question 16. Which type of organism dwarfs all others in terms of species diversity?
  1.    plants
  2.    mammals
  3.    insects
  4.    protists
 Discuss Question
Answer: Option C. -> insects
Question 17. The latitudinal gradient is a natural pattern in which species diversity generally
  1.    increases toward the equator
  2.    decreases toward the prime meridan
  3.    decreases in warmer climates
  4.    increases toward the poles
 Discuss Question
Answer: Option A. -> increases toward the equator
Question 18. Which of the following is an example of a method for managing whole ecosystems and habitats?
  1.    captive breeding
  2.    cloning
  3.    species survival plans
  4.    mapping biodiversity hotspots
 Discuss Question
Answer: Option D. -> mapping biodiversity hotspots
Question 19. Which is the most direct way in which biodiversity can provide a source of income?
  1.    medicines
  2.    ecotourism
  3.    research
  4.    agriculture
 Discuss Question
Answer: Option B. -> ecotourism
Question 20. The term diversity means
  1.    similarity
  2.    variety
  3.    Eastern
  4.    None of these
 Discuss Question
Answer: Option B. -> variety

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