As a result of measures to cut back on emissions of ozone-depleting substances, stratospheric ozone levels are expected to return to 1980 levels by around __________ in midlatitude regions and __________ in Antarctica.
A) 2080, 2045.
B) 2045, 2080
C) 2100, 2700
D) 2020, 2030

Question

Quizplus · Accepted Answer

Stratospheric ozone levels are projected to return to 1980 levels by around 2045 in midlatitude regions and by 2080 in Antarctica due to the reduction of ozone-depleting substances.

As a Result of Measures to Cut Back on Emissions