Category: Everyday Science MCQs
As a result of which treaty, ozone hole in Antarctica is slowly healing?
Check Correct Option
Montreal protocol
Everyday Science MCQs
Everyday Science MCQs Test Preparation | Latest 2021 Quiz FPSC, NTS, KPPSC, PPSC, SPSC, BPSC, OTS, UTS, PTS, CTS, ATS, ETEA MCQs Test Questions.