Answer:
With three leaves, I am just a plant. Add another leaf and everyone will want me for good luck. What am I?
I can generate fear and some say I come out of your ears. I am as quiet as a mouse but not welcomed in the house. What am I?
You can read me both ways I wear; One way it's a number reversed a snare.
What invention lets you look right through a wall?
Lives in winter, dies in summer, and grows with its roots upward. What is it?
Brings the sky a lot closer.