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The most abundant constituent of atmospheric air is ?

  • Oxygen
  • Hydrogen
  • Carbon
  • Nitrogen

Answer: Option D

Similar Questions :

1. Which crop helps in nitrogen fixation ?

  • Maize
  • Beans
  • Potatos
  • Rice

Answer: Option B

2. Who is known as father of Genetics ?

  • Morgan
  • Henry
  • G.J. Mandel
  • F.B. Morrison

Answer: Option C

3. What is Myopia ?

  • Colour blindness
  • Night blindness
  • Long sightedness
  • Short sightedness

Answer: Option D

4. Cirrhosis is a disease that affects which among the following organs ?

  • Kidney
  • Liver
  • Pancreas
  • Small Intestine

Answer: Option B

5. Who invented Insulin ?

  • Christian Bernard
  • Stenach
  • Edwards and Stepto
  • Banting

Answer: Option D

Explanation:

Christian Bernard invented Heart Transplantation,

Stenach invented Sex hormone,

Edwards and Stepto invented first test tube baby.

Read more from - Biology Questions Answers
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