Answer:
I touch the Earth, I touch the sky, but if I touch you, you’ll likely die. What am I?
I plow and plow, but never sow. What am I?
In a tunnel of darkness lies a beast or iron. It can only attack when pulled back. What is it?
You throw me away, I find my way back. Traditionally, I'm wooden with an arch in my back. What am I?
I am useless when together but useful when I am broken apart. What am I?
It flows out of the soil, It burns you if it boils, And holds us in its coils, More valuable than gold, As black as it is old.