Answer:
I tremble at each breath of air, and yet can heaviest burdens bear. What am I?
I have cities without people forests without trees and oceans without water. What am I?
Only one color, but not one size. Stuck at the bottom, yet easily flies. Present in sun, but not in rain; doing no harm, and feeling no pain. What am I?
The more it dries, the wetter it becomes. What is it?
I am a seed with three letters in my name. Take away the last two and I still sound the same. What am I?
Runs over fields and woods all day. Under the bed at night sits not alone, With long tongue hanging out, Resting at your feet until we go for a walk