It is the second-smallest county by total area in Maryland. Notable waterways include the Choptank River and Tuckahoe Creek, as well as the man-made Williston Lake. Caroline County currently ranks seventh nationally in terms of land protected under the Ag Preservation Program.
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.
Assuming we're talking about the air around us, the gas you breathe in is actually a mixture of gases. Roughly 80% of it is nitrogen gas which and a little under 20% of it is â¦ oxygen which is the part we need. About 1% of the atmosphere is neither oxygen or nitrogen and crudely speaking is everything else that's in the air, about 0.05% is carbon dioxide and there are small amounts of xenon, helium, methane etc.