Answer:
I am of several different kinds, but the one you pick doesn't do its job. What am I?
I plow and plow but never sow.
I am seen in the water. If seen in the sky I am in the rainbow a jay's feather and lapis lazuli.
The more you take the more you leave behind. What are they?
I row quickly with four oars but never comes out from under my own roof.
I touch the Earth, I touch the sky, but if I touch you, you’ll likely die. What am I?