Question

Amidst the ever increasing air pollution and constant pressure of population on land we might face scarcity of clean air in the future .future where oxygen cloud be sold for living. design and add to sell oxygen

Answer 1

Well, the advertisement would go something like this:

Your search for the oxygen cloud ends here" Get unlimited oxygen for the first 100 customers as the introductory offer. The offers last still stocks last.

So come and grab your oxygen cloud for free! Hurry now and book your oxygen cloud