As the stock of oil (and other &quot;nonrenewable&quot; natural resources) is used up, market prices must rise as a reflection of its increasing &quot;scarcity.
(the stock of oil (and other &quot;nonrenewable&quot; natural resources; is used up; ) (market prices; must rise; as a reflection of its increasing &quot;scarcity)
the stock of oil (and other &quot;nonrenewable&quot market prices
natural resources must rise
is used up
as a reflection of its increasing &quot;scarcity