Class XI

Highest energy value is provided by
  1. Lipids
  2. Fats
  3. Starch
  4. Glucose
Reaction between sulfur dioxide and oxygen results in
  1. Sulfuric acid
  2. Acid rain
  3. Alkali rain
  4. Both A and B
Peas and beans split along the
  1. Pericarp
  2. Sutures
  3. Micropyle
  4. Radicle
 All are compounds of carbon, but,
  1. Mineral salts
  2. Fats
  3. Vitamins
  4. Fiber
Breathing occurs due to
  1. A chemical process
  2. Muscular contractions and movements of ribs
  3. Oxidation of organic molecules to release energy and water
  4. All of these
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