What are 6 substances that you find in air?

Is chlorine oxide ionic or compound? Did scrodinger discover the neutrons? Why are some materials hard to classify as a solid liquid or gas? Is a cyclone or a thunderstorm more destructive? What are the factors determining quantum of communication? Does everyone in the world defecate? Why is eyes the best part of the body? An average force of 4000 newtons acts for 0.01 seconds on a bullet of mass 50g calcualte the speed of the bullet? How many grams are is a pound? Who established atomic number as the basic for organizing the periodic table? Where do low frequency sounds stimulate hair cells on the basilar membrane? What is a disadvantage of incomplete combustion when Bunsen burner is stopped? What is squamous epithelial lessions CIN-II? When a country has no water access to water and is only surrounded by land what is this called? What is the brightest thing in the solar system besides the sun and moon? What Color tube is used for HIV test? What are the different of physical? How mutations in reproductive cells are different from mutations in body cells? What is phase voltage without neutral or ground in star connection? What is stronger intermolecular or intra?