Answer:
I am a word of letters three. Add two and fewer there will be. What word am I?
Lighter than what I am made of. More of me is hidden than seen. What am I?
I go around in circles, but always straight ahead. Never complain, no matter where I am led. What am I?
Lovely and round, I shine with pale light, Grown in the darkness, a ladyβs delight.
Die without me, never thank me. Walk right through me, never feel me. What am I?
Give it food and it will live, give it water and it will die.