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MCQs

Total Questions : 132 | Page 8 of 14 pages
Question 71. The destruction of contaminants using high temperature is done by _______
  1.    Quorum sensing
  2.    Quorum quenching
  3.    Quorum requirement
  4.    Thermal method
 Discuss Question
Answer: Option D. -> Thermal method
Answer: (d).Thermal method
Question 72. Increasing the cost of landfill is called as __________
  1.    Landfill tax
  2.    Price hike
  3.    Sewage tax
  4.    Encapsulation
 Discuss Question
Answer: Option A. -> Landfill tax
Answer: (a).Landfill tax
Question 73. Which of the following processes uses hydroponics to remove water contaminants?
  1.    Rhizofiltration
  2.    Pollution control
  3.    Antibiotic development
  4.    Manufacturing process
 Discuss Question
Answer: Option A. -> Rhizofiltration
Answer: (a).Rhizofiltration
Question 74. The process by which microorganisms utilize contaminants as their food sources thereby degrading them is called as ____________
  1.    Inorganic compounds
  2.    Isolated bio-components
  3.    Toxic compounds
  4.    Mineralisation
 Discuss Question
Answer: Option D. -> Mineralisation
Answer: (d).Mineralisation
Question 75. Decomposition of remains from mineralization process is done by ______
  1.    Other microorganisms
  2.    Entering the food chain
  3.    Increasing dissolved oxygen
  4.    Producing methane gas
 Discuss Question
Answer: Option A. -> Other microorganisms
Answer: (a).Other microorganisms
Question 76. Co-metabolism is a process in which contaminants is again taken up by the microorganisms and is used as a food source.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 77. Immobilization is used to remove which type of contaminants?
  1.    Hydrogen
  2.    Nitrogen
  3.    Carbon monoxide
  4.    Metals
 Discuss Question
Answer: Option D. -> Metals
Answer: (d).Metals
Question 78. Which among the following is a process of immobilization?
  1.    Bio-accumulation
  2.    Bio-remediation
  3.    Bio-degradation
  4.    Bio-magnification
 Discuss Question
Answer: Option A. -> Bio-accumulation
Answer: (a).Bio-accumulation
Question 79. Bio-remediation is most suitable for the degradation of __________
  1.    Methane
  2.    Nitrogen
  3.    Organic chemicals
  4.    Carbon dioxide
 Discuss Question
Answer: Option C. -> Organic chemicals
Answer: (c).Organic chemicals
Question 80. Bio-remediation can also be used to degrade __________
  1.    Methane
  2.    Nitrogen
  3.    Radionuclides
  4.    Carbon dioxide
 Discuss Question
Answer: Option C. -> Radionuclides
Answer: (c).Radionuclides

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