Quick revision: every question with its correct answer. For the full explanation, open the relevant test and tap View Solution.
2.1 Applied Ecology — Test 1
Q1. The single most important cause of the decline in global biodiversity is:✓ Habitat destruction
Q2. For a species showing logistic growth with K = 20,000 and r = 0.15, the maximum sustainable yield (MSY) is:✓ 750
Q3. Biological magnification (biomagnification) refers to:✓ Amplification of a pollutant's concentration as it moves up the food chain
Q4. In a lake, reducing a plankton-feeding fish population was followed by a decline in primary productivity. This is consistent with which control of primary productivity?✓ Top-down control
Q5. Cadmium pollution in humans causes:✓ Itai-itai disease
Q6. The Kyoto Protocol was signed to address the problem of:✓ Global warming
Q7. Ruminating animals are an important biological source of which greenhouse gas?✓ Methane
Q8. When the biological oxygen demand (BOD) of water becomes very high:✓ The water becomes anaerobic
Q9. Which organism is a very sensitive bioindicator of sulphur dioxide pollution in air?✓ Lichen
Q10. Peroxyacetyl nitrate (PAN) is a product of:✓ Photochemical smog
Q11. Acid rain is caused mainly by which air pollutants?✓ Oxides of nitrogen and sulphur dioxide
Q12. The Montreal Protocol was signed with the objective of:✓ Protection of the ozone layer
Q13. The biological method for cleaning up contaminated soil and groundwater using living organisms is called:✓ Bioremediation
Q14. Which water pollutant is responsible for blue baby syndrome (methaemoglobinaemia)?✓ Nitrate
Q15. Acid rain is associated with the oxides of which elements?✓ Sulphur and nitrogen
Q16. The major pollutant emitted from automobile exhaust is:✓ Carbon monoxide
2.1 Applied Ecology — Test 2
Q17. Depletion of the stratospheric ozone layer is caused primarily by:✓ Chlorofluorocarbons
Q18. DDT (dichlorodiphenyltrichloroethane) is best associated with:✓ Biomagnification in food webs
Q19. Which legally binding climate agreement has effectively replaced the Kyoto Protocol?✓ Paris Climate Agreement
Q20. Which essential elements must be added as the main supplement to enhance bioremediation of oil spills?✓ Nitrogen and phosphorus
Q21. The Chinese brake fern (Pteris vittata) is a well-known hyperaccumulator of:✓ Arsenic
Q22. Which insect is a good indicator of clean, unpolluted aquatic systems?✓ Mayfly
Q23. The Bramble Cay melomys was recently reported as the first mammal to go extinct primarily because of:✓ Climate change (sea-level rise)
Q24. Fine solid or liquid particles suspended in air are collectively known as:✓ Particulate pollutants
Q25. The Taj Mahal's marble is chiefly threatened by which pollutant?✓ Sulphur dioxide
Q26. Eutrophication of a water body is caused mainly by:✓ Nutrient enrichment (nitrates and phosphates)
Q27. The greenhouse gas with by far the largest overall contribution to current global warming is:✓ Carbon dioxide
Q28. For remote-sensing analysis of vegetation, the most informative spectral bands are:✓ Red and near-infrared
Q29. Minamata disease is caused by poisoning with:✓ Methylmercury
Q30. The phenomenon in which a pollutant builds up within a single organism over its lifetime is called:✓ Bioaccumulation
Q31. The chief gases responsible for depleting stratospheric ozone share which reactive element?✓ Chlorine (and bromine)