Solution:
The ozone layer is important for life on Earth because it blocks out the majority of the sun's harmful UV light.
So, "Ozone layer" is the appropriate selection.
Earth is protected from UV radiations by a layer of
Earth is protected from UV radiations by a layer of
The ozone layer is important for life on Earth because it blocks out the majority of the sun's harmful UV light.
So, "Ozone layer" is the appropriate selection.