Answer:
What is pronounced like one letter, written with three letters. And belongs to all animals?
Lovely and round, I shine with pale light, grown in the darkness, a lady's delight.
Plant whose name sounds like a dish full of dairy spread.
A harvest sown and reaped on the same day in an unplowed field. Which increases without growing, remains whole though it is eaten within and without. Is useless and yet the staple of nations.
What's black when you get it, red when you use it, and white when you're all through with it?
What is so fragile that saying its name breaks it?