Q. At present, the concentration of $CO_{2}$ in the atmosphere is about
A) 100 ppm
B) 240 ppm
C) 380 ppm
D) 520 ppm
Explanation
The concentration of $CO_{2}$ in atmosphere is above 380 ppm after 2009.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.