A Gassy Canopy
a: Ozone layer ~
b: protective canopy
What: It acts as a canopy, but it's a gaseous canopy, that is produced by UV radiation, and in turn absorbs the radiation that helped to produce it.
Useful?
Writer: Not Stated
LCC:
Where:
Date: Dec 13 2012 10:49 AM
# 2582 Critique Analogy