It is cheap since it can be obtained by fractional distillation of air.
Cheap fertilizer is not good and good fertilizer is not cheap. So, chemical fertilisers are expensive because they contain nitrogen, phosphorus and potassium elements.
copper is expensive due to the fact that it is £80 per kg. There are more expensive metals for example rubiuem which is £150,000 per kg
Ar is the chemical symbol for argon.
argon is very important to out society with out we would pretty much have no electronics because it lights the screen for us to see what were doing it is also used in light bulbs
Argon is an element and all the atoms in argon are argon atoms.
It is inexpensive.
is oil cheap or expensive
Its expensive
its expensive
Expensive, costly, precious, priceless, or valuable. Those are opposites of cheap.
expensive
expensive opulent, expensive, pricy, highbrow,
Nylon is not an expensive material.
or
Cheap
It isn't "cheap" but it isn't as expensive as oak.
The duration of Life Is Cheap... But Toilet Paper Is Expensive is 1.38 hours.