Chlorofluorocarbon compounds are dangerous to the environment because they cause erosion of the ozone layer and global warming phenomenon. There are two dangerous phenomena that have faced the Earth since the mid-twentieth (20th) century....
UVB Radiation is a kind of ultraviolet light from the sun that has several harmful effects, UVB is particularly effective at damaging DNA, It is the cause of melanoma and other types of skin...
The ozone layer The ozone layer is located at the height of 20 to 40 km above the sea level, And it is located in the lower part of the stratosphere layer, As it...
