Answer:
I plow and plow but never sow.
We are little airy creatures all of different voice and features one of us in glass is set. One of us you'll find in jet. Another you may see in tin. And the fourth a box within. If the fifth you should pursue it can never fly from you.
I am always hungry I must always be fed. The finger I lick will soon turn red.
I am the second L in LOL.
Iām grown from darkness but shine with a pale light. Very round I am and always a lady's delight.
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.