Dry air contains roughly (by volume): All the above are relatively small, light, non-polar molecules, characteristics mimicking an ideal gas. At normal ambient conditions such as standard temperature and pressure, most real gases behave qualitatively like an ideal gas.
provide - take measures in preparation for; provide for the proper care of the passengers on the cruise ship gear up, prepare, ready, set, fix, set up - make ready or suitable or equip in advance for a particular purpose or for some use, event, etc; Get the children ready for school!; prepare for war; I was fixing to leave town after I paid the hotel bill
Provision (accounting) In financial accounting, a provision is an account which records a present liability of an entity. The recording of the liability in the entity's balance sheet is matched to an appropriate expense account in the entity's income statement. Sometimes in IFRS, but not in GAAP, the term reserve is used instead of provision.