Is air considered a fluid or a gas? Why?
Is air considered a fluid?
Why does air flow? What are the pros and cons of liquid air? What are examples of liquids and gases? What is the difference between a fluid and a liquid? What is pure air? What gases are dissolved in liquids? What are some examples? What is air turbulence? Why is water liquid but H2S gas? What is an air turbulence? Is oxygen a solid, liquid or gas? When we breathe air do we breathe other gases as well and if do then what happens to those harmful gases? Can humans breathe liquid oxygen? What is the difference between gas and air? Is Helium considered an inert gas? If not, why? Does water contains voids or any air content? Why is liquid ammonia considered a water like solvent? Can I drink water condensed from the air? How can oxygen be a liquid? What is physiology of fluid in human body? If at typical atmospheric temperatures and pressures, water is a liquid (or solid) and much denser than air, then why does water vapour exist? What would liquid/solid oxygen be like? Is the earth a liquid or a solid? Is it possible to breathe liquid oxygen? Why is water gas (mixture of hydrogen gas and carbon monoxide)  called as water gas? Does air have a pH? What is the difference between a wet gas and a condensate gas reservoirs? What is water vapour? What is ventilation? What is meant by Newtonian and non-Newtonian fluids in fluid mechanics? Can you cite an example for each of them? Can a flowing liquid have surface tension?