Answer:
I plow and plow but never sow.
I am used when you jump off a bridge for fun.
A dagger thrust at my own heart dictates the way I'm swayed. Left I stand and right I yield to the twisting of the blade. What am I?
I am found on Mercury Venus Earth and Mars but not on Jupiter or Saturn. What am I?
I am a type of weapon for SCI-FI characters
What never gets any wetter no matter how hard it rains?