Class IX

Before discharging decomposed sewage into rivers and seas,
  1. water is filtered
  2. pathogens are removed
  3. pH of sewage is neutralized
  4. both A and B
6000 kJ of energy can be produced by oxidation of
  1. 1 mole of glucose
  2. 2 moles of glucose
  3. 3 moles of glucose
  4. 4 moles of glucose
Advantages of Artificial Methods of Vegetative Reproduction include
  1. crops with better quality
  2. crops with more yield
  3. ability to produce plants with desirable qualities
  4. all of these
If iodine is applied to glycogen-rich food, resulting color will be
  1. violet
  2. blue-black
  3. red
  4. brown
Germination of 101 years old seeds, was observed in
  1. Melon family
  2. Arctic Tundra Lupine
  3. Moth Mullein
  4. Hesperidiums
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