Answer:
I tremble at each breath of air, and yet can heaviest burdens bear. What am I?
I have roots nobody sees. I am taller than trees. Up up I go but I never grow.
Whoever made me doesn't want me. Whoever bought me doesn't need me. Whoever uses me doesn't know me. What am I?
I open to close but I close to open. I'm surrounded by water but I'm never soaking. What am I?
There are four of us but it seems like everyone loves spades the most.
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