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MCQs

Total Questions : 132 | Page 12 of 14 pages
Question 111. Which of the following compound gets accumulated as a result of degradation by the anaerobic microorganisms?
  1.    Liquid Nitrogen
  2.    Crude oil
  3.    Oxygen
  4.    Nitrogen
 Discuss Question
Answer: Option B. -> Crude oil
Answer: (b).Crude oil
Question 112. A period of adaptation is required before microbial degradation of xenobiotics.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 113. Which of the following ion is not found in acidic soils?
  1.    Ca
  2.    Al
  3.    Fe
  4.    Cu
 Discuss Question
Answer: Option A. -> Ca
Answer: (a).Ca
Question 114. Acidic soils can be characterized by _______
  1.    Low pH
  2.    High pH
  3.    Texture
  4.    Colour
 Discuss Question
Answer: Option A. -> Low pH
Answer: (a).Low pH
Question 115. Which of the following ions is not found in excess in acidic soils?
  1.    Al
  2.    Fe
  3.    Mg
  4.    Cu
 Discuss Question
Answer: Option C. -> Mg
Answer: (c).Mg
Question 116. Acidic sulphate soils have pH<4.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 117. Which of the following is majorly found in acid sulphate soils?
  1.    Pyrite
  2.    Copper
  3.    Aluminium
  4.    Magnesium
 Discuss Question
Answer: Option A. -> Pyrite
Answer: (a).Pyrite
Question 118. Crops that are grown on acidic sulphate soils gets destroyed due to nutrient deficiency caused due to _____________
  1.    Aluminium toxicity
  2.    Sodium toxicity
  3.    Oxygen toxicity
  4.    Nitrogen toxicity
 Discuss Question
Answer: Option A. -> Aluminium toxicity
Answer: (a).Aluminium toxicity
Question 119. Which of the following substance can be used for soil reclamation?
  1.    Gypsum
  2.    Citric acid
  3.    Phosphoric acid
  4.    Oxalic acid
 Discuss Question
Answer: Option A. -> Gypsum
Answer: (a).Gypsum
Question 120. Sesbania aculeata can be used for soil reclamation of alkali soils.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True

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