'In the 1970s it was found that when CFCs break down, this is the main 1 of the 3 elements in them that harms the ozone'
chlorine
SCIENCE: In the 1970s it was found that when CFCs break down, this is the main 1 of the 3 elements in them that harms the ozone
In the 1970s it was found that when CFCs break down, this is the main 1 of the 3 elements in them that harms the ozone
In the 1970s it was found that when CFCs break down, this is the main 1 of the 3 elements in them that harms the ozone
SCIENCE
chlorine
SCIENCE