Air is mainly composed of nitrogen, oxygen, and argon, which together constitute the major gases of the atmosphere. Water vapor accounts for roughly 0.25% of the atmosphere by mass.
Physical property, such as real estate, does not qualify due to the unpredictable length of the sales process. As retirement accounts, 401(k)s and IRAs operate both as liquid assets and non-liquid assets depending on the circumstance.
Liquid assets are those considered easy to liquidate. Such as savings, money market accounts and cash on hand. Non liquid assets are difficult to liquidate. Certificates of deâ¦posits are an example of a non liquid asset.