ESS
Grade-10
Easy

Question

What is ‘A’ and ‘B’ in the diagram given below.

  1. A – Nitrogen 21%, B – Carbon dioxide 79%
  2. A – Oxygen 21%, B – Nitrogen 79%
  3. A – Nitrogen 78%, B – Oxygen 21%
  4. A – Nitrogen 78%, B – Argon .01%

hintHint:

A is nitrogen, B is oxygen

The correct answer is: A – Nitrogen 78%, B – Oxygen 21%


    A is nitrogen 78% and B is oxygen 21%

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