New York State Roads - I-87 Exit List. Interstate 87 is a major north-south road in New York state, connecting New York City, Albany, the Adirondacks, and MontrÃ©al. Like Interstate 90, it runs along the Thruway for part of its length and has three sets of exit numbers.
B2 [ C or U ] a substance in a form like air that is neither solid nor liquid: Oxygen, hydrogen, and nitrogen are all gases. poisonous/inflammable/toxic gas. A2 [ C or U ] a substance in a form like air that is used as a fuel for heating and cooking:
'Gas' is a one of the many states of matter. The other common/ non-exotic states of matter are 'solid', 'liquid' and 'plasma'. 'Air' as in the atmosphere we live in and breathe, on the Earth, is a mixture of various gases such as nitrogen, oxygen, carbon dioxide, and so on. Thus, air is gaseous.