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MCQs

Total Questions : 498 | Page 48 of 50 pages
Question 471. Lead has become in bluish-white color, after being freshly
  1.    Manufactured
  2.    Formed
  3.    Penetrate
  4.    Produced
 Discuss Question
Answer: Option C. -> Penetrate
Answer: (c).Penetrate
Question 472. Mercury is used in calomel electrodes, mirror telescopes and
  1.    Frigh
  2.    Microwaves
  3.    Toaster
  4.    fluorescent lamps
 Discuss Question
Answer: Option D. -> fluorescent lamps
Answer: (d).fluorescent lamps
Question 473. Mercury-based fever thermometers are being banned in the
  1.    UAE
  2.    Uk
  3.    US
  4.    Asia
 Discuss Question
Answer: Option C. -> US
Answer: (c).US
Question 474. PCBs stands for
  1.    Poly Calcium biphenyls
  2.    Poly chloride
  3.    Polychlorinated by phenyls
  4.    Poly Carbon biphenyls
 Discuss Question
Answer: Option C. -> Polychlorinated by phenyls
Answer: (c).Polychlorinated by phenyls
Question 475. Non point pollutants cannot be attributed to a specific
  1.    Space
  2.    Location
  3.    Forests
  4.    work
 Discuss Question
Answer: Option B. -> Location
Answer: (b).Location
Question 476. Point source pollutants are
  1.    Identifiable
  2.    Not identifiable
  3.    Scattered
  4.    harmful
 Discuss Question
Answer: Option A. -> Identifiable
Answer: (a).Identifiable
Question 477. Oil slicks are responsible for killing species, particularly
  1.    Insects
  2.    Wild animals
  3.    Terrestrial animals
  4.    Marine habitat
 Discuss Question
Answer: Option D. -> Marine habitat
Answer: (d).Marine habitat
Question 478. Primary sources of oil, included cars, heavy machinery and
  1.    Waste water
  2.    Oil Tankers
  3.    Household product
  4.    garbage
 Discuss Question
Answer: Option B. -> Oil Tankers
Answer: (b).Oil Tankers
Question 479. PAH binding strongly to organic matter, found in sediments of
  1.    Terrestrial environment
  2.    Aquatic environment
  3.    Chemical compounds
  4.    inorganic compounds
 Discuss Question
Answer: Option B. -> Aquatic environment
Answer: (b).Aquatic environment
Question 480. Process involved in degradation of PAHs, employing natural means, resulting from
  1.    Microbiological activity
  2.    Plants
  3.    Insects
  4.    aquatic species
 Discuss Question
Answer: Option A. -> Microbiological activity
Answer: (a).Microbiological activity

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