Question Detail

The most abundant constituent of atmospheric air is ?

Oxygen
Hydrogen
Carbon
Nitrogen

Answer: Option D

Similar Questions :

1. Which blood group is known as Universal donor ?

A+
A-
AB
O

Answer: Option D

2. The richest source of vitamin D is

Cheese
Milk
Spinach
Cod liver oil

Answer: Option D

3. Non-clotting of blood is caused by deficiency of ?

Vitamin A
Vitamin C
Vitamin E
Vitamin K

Answer: Option D

4. Who invented Vitamin ?

F.G. Hopkins
Mc. Collum
Holst
Ronald Ross

Answer: Option A

Explanation:

Mc. Collum invented Vitamin A, Vitamin B and Vitamin D

Holst invented Vitamin C

Ronald Ross invented Malaria parasite and treatment.

5. Which is responsible for the process of cell division ?

mitosis
heterosis
fusion
fission

Answer: Option A

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