Question

Which of following is/are sources of Nitrogen oxides?

• A.
  Industrial emissions
• B.
  Fertilizers
• C.
  Thermonuclear weapons
• D.
  All of the above

Answer 1

The correct option is D

All of the above
<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Nitrous oxide is emitted from fertilizers and animal wastes and also from burning of fossil fuels. It is also a greenhouse gas.
It is also emitted from Industrial emissions and thermonuclear weapons.