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Plants absorb dissolved nitrates from soil and convert them into :

  • Free nitrogen
  • Urea
  • Proteins
  • Ammonia

Answer: Option A

Similar Questions :

1. Scurvy is caused by deficiency of ?

  • Vitamin A
  • Vitamin C
  • Vitamin D
  • Vitamin E

Answer: Option B

2. Oxygen in our blood is transported by ?

  • Keratin
  • Collagen
  • Myoglobin
  • Haemoglobin

Answer: Option D

3. Which one of the following is the sweetest natural sugar ?

  • Lactose
  • Glucose
  • Sucrose
  • Fructose

Answer: Option D

4. Insulin controls the metabolism of ?

  • Fats
  • Carbohydrates
  • Proteins
  • Sugars

Answer: Option D

5. What would happen if human blood becomes acidic ?

  • Oxygen-carrying capacity of haemoglobin is increase
  • Oxygen-carrying capacity of haemoglobin is decrease
  • Will remain same
  • Will be unpredictable

Answer: Option B

Explanation:

human blood becomes acidic means low pH

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