___________ protects us from the harmful ultraviolet rays of the sun /fill in the blanks please give me answer

___________ protects us from the harmful ultraviolet rays of the sun /

1.	___________ protects us from the harmful ultraviolet rays of the sun /fill in the blanks please give me answer
Answer» AYER OZONE LAYER PROTECTS US from the harmful ultraviolet RAYS of the sun. Thanks.