Q. Why ozone is known as ‘chemical weed’?
A) Because it is formed by chemical reactions
B) Because it is harmful as well useful
C) Because it is harmful, just like weeds for mankind
D) Ozone is not designated as chemical weed
Explanation
Good ozone present in stratosphere is useful and bad ozone present in troposphere is harmful for mankind
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.