Answer:
I cover what's real; hide what is true, but sometimes bring out the courage in you. What am I?
I am all around you, but you cannot see me. I have no throat, but you can hear me. Valued during summer but despised in the winter. What am I?
Searing 'cross the pitch-black skies I scream in celebration Yet moments later my outburst through I am naught but imagination.
I describe a toilet cleaner as well as one of Santa's reindeer
What force and strength cannot get through I with my unique teeth can do.
No matter how little or how much you use me, you change me every month.