Answer:
I am a mountain at night, meadow at day. What am I?
You can see me in water, but I never get wet. What am I?
I turn everything around, but I cannot move. When you see me, you see you! What am I?
I get wet when drying. I get dirty when wiping.
Many people own a copy of me. Without me the world would fall.
When someone uses this acronym, you know you've got to pick up the pace