Riddle of the Day

[Gizmokid2005]

All about, but cannot be seen,
Can be captured, cannot be held,
No throat, but can be heard.
What is it?

ANSWER (Congrats Heylinder!): Wind

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NEXT RIDDLE:

Many things can create one
it can be any shape or size.
it is created for various reasons
it can shrink or grow with time.
What is it?