Answer:
What gets broken when you don't hold it?
Precious stones in a pack of cards.
A blue house has blue bricksΝΎ a yellow house has a yellow bricks. What is a green house made of?
If you are unsure how to use one then just ask a flight attendant.
What is taken before you can get it?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?