ExamPlay Dark Logo
وارد شوید

WAEC - Biology (2007 - No. 43)

The effect of chlorofluorocarbon is
reduction of oxygen concentration in the atmosphere
depletion of the ozone layer
screening of ultra violet rays
increase in carbon dioxide concentration

نظرات (0)

ورود به نظر
تبلیغات
BrainBehindX Inc Logo
©2026; پشتیبانی شده توسط BrainBehindX Inc