Answer:
You throw me out when you want to use me, but take me in when you donβt want to use me. What am I?
I am a mountain at night, meadow at day. What am I?
Keep doing me to avoid lens dryness
I am an activity dogs are very good at when a ball is thrown.
I am always around you but often forgotten. I am pure and clean most time but occasionally rotten.
I am a band that does not perform, sing, or act. What am I?