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MCQs

Total Questions : 132 | Page 6 of 14 pages
Question 51. Which of the following is the most reliable method of soil remediation?
  1.    Bio-magnification
  2.    Bio-remediation
  3.    Lyophilization
  4.    Chemical method
 Discuss Question
Answer: Option B. -> Bio-remediation
Answer: (b).Bio-remediation
Question 52. Which of the following decreases the risk of secondary contamination in the physical method of soil remediation?
  1.    Concentration
  2.    Reduced cost
  3.    Quorum quenching
  4.    Lyophilization
 Discuss Question
Answer: Option A. -> Concentration
Answer: (a).Concentration
Question 53. In alkaline soils, the salinity is reduced.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 54. Which of the following vegetable doesn’t grow in alkaline soils?
  1.    Arugula
  2.    Asparagus
  3.    Beet
  4.    Pumpkins
 Discuss Question
Answer: Option D. -> Pumpkins
Answer: (d).Pumpkins
Question 55. What would be the effect on plants if the soil’s pH increases?
  1.    Nutrient absorption is reduced
  2.    Nutrient absorption increases
  3.    Soil contamination
  4.    Soil fertility increases
 Discuss Question
Answer: Option A. -> Nutrient absorption is reduced
Answer: (a).Nutrient absorption is reduced
Question 56. Reclamation of alkaline soils can be done by adding aluminium sulfate.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 57. Which of the following plants can grow in a pH range of 5-5.5?
  1.    Rhododendrons
  2.    Cactus
  3.    Tagetes
  4.    China rose
 Discuss Question
Answer: Option A. -> Rhododendrons
Answer: (a).Rhododendrons
Question 58. Which of the following term is not used in place of the term “Tailings”?
  1.    Mine dumps
  2.    Culm dumps
  3.    Terra-coned
  4.    Mine drainage
 Discuss Question
Answer: Option D. -> Mine drainage
Answer: (d).Mine drainage
Question 59. The first phase that leads to removal of ore is called as _______
  1.    Extraction
  2.    Beneficiation
  3.    Processing
  4.    Remediation
 Discuss Question
Answer: Option A. -> Extraction
Answer: (a).Extraction
Question 60. Which of the following methods does not lead to the generation of mine wastes?
  1.    Extraction of minerals
  2.    Beneficiation of minerals
  3.    Processing of minerals
  4.    Remediation of mine waste
 Discuss Question
Answer: Option D. -> Remediation of mine waste
Answer: (d).Remediation of mine waste

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