Definition of First amendment lease. A lease which contains a first amendment clause. Used for lessees who may opt to purchase equipment early. Typically- includes a penalty for non-purchase or requires the lessee to renew for a fixed number of months. Used to shorten term and get operating lease treatment. Also called a Stretch Lease in Canada.
Is air a mixture or a solution or a compound or an element? Air is a mixture of gases (and not a compound), about 78% being  nitrogen (an element) , about 21% oxygen (another element), and all  other gases present in much lesser amouâ¦nts. The remaining 1% is  made up of argon (0.93%), carbon dioxide (0.039% as of 2010) and  other trace gases (0.003%).
3 Why is it safe to use ozone to purify water, but not air? Ozone can be used successfully to purify water in some applications. This is because very high levels of ozone can be used in water, and the reactions are taking place under water, where people are not generally exposed.