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:
A gas is a form of matter that does not have a defined shape or volume. Gases can consists of a single element, such as hydrogen gas (H 2), or may be a compound, such as carbon dioxide (CO 2), or a mixture of several gases, such as air.Here is a list of examples of 10 gases and their uses. 1  oxygen (O 2) : medical use, welding. 2  nitrogen (N 2): fire suppression, provide inert atmosphere.ases can consists of a single element, such as hydrogen gas (H 2), or may be a compound, such as carbon dioxide (CO 2), or a mixture of several gases, such as air. Here is a list of examples of 10 gases and their uses. 1  oxygen (O 2) : medical use, welding.