Answer:
I am a million peopleβs wakeup call
I run around the streets all day. Under the bed or by the door I sit at night, never alone. My tongue hangs out, waiting to be fed during the day. What am I?
Who keeps the ocean clean?
I go through a door but never go in and never come out.
Without a bridle, or a saddle, across a thing I ride a-straddle. And those I ride, by help of me, though almost blind, are made to see. What am I?
I am a cave full of bones and the house of a worm.