What is the average concentration of ozone in the ozone layer of the atmosphere?
A. Nearly 100%
B. Greater than 90%
C. Less than 10ppm
D. Between 10-50%
Answer:C
What is the average concentration of ozone in the ozone layer of the atmosphere?
A. Nearly 100% B. Greater than 90% C. Less than 10ppm D. Between 10-50%