Answer:
I can be winding and I can be straight. I can be smooth and I can be rough. Sometimes both. I start out black but fade to brown. My favorite colors are yellow and white and I love stripes and dashed lines.
I transfer oxygen from the atmosphere to your blood
The more of me there is the less you see.
I come out of the earth, I am sold in the market. The one who buys me cuts my tail, takes off my suit of silk, and weeps beside me when I am dead. What am I?
The more of me you take, the more I appear behind you. What am I?
I touch the Earth, I touch the sky, but if I touch you, you’ll likely die. What am I?