Question

write on essay of the following topic,an ideal neighbour ​

Answer 1

it's ur neighbour so how can we know about it

Answer 2

Air is a mixture of gases, consisting primarily of nitrogen (78 %), oxygen (21 %) and the inert gas argon (0.9 %). The remaining 0.1 % is made up mostly of carbon dioxide and the inert gases neon, helium, krypton and xenon. Air can be separated into its components by means of distillation in special units.