THE OZONE LAYER MUST BE PROTECTED BECAUSE IT SHIELDS THE EARTH FR...
180. The ozone layer must be protected because it shields the Earth from
excessive ultraviolet radiate.
a. must be protected
b. it
c. from
d. radiate
--> d
180. The ozone layer must be protected because it shields the Earth from
excessive ultraviolet radiate.
a. must be protected
b. it
c. from
d. radiate
--> d