In contrast [to trees and fish], oil, metals, and coal are not renewable; they don't reproduce, sprout, or have sex to produce baby oil droplets or coal nuggets.
![In contrast [to trees and fish], oil, metals, and coal are not renewable; they don't reproduce, sprout, or have sex to produce baby oil droplets or coal nuggets.](http://cdn.quoteddaily.com/images/jared-diamond/in-contrast-to-trees-and-fish-oil-metals-and-coal-are-not-renewable-they-dont-reproduce-sprout-or-have-sex.jpg)
In contrast [to trees and fish], oil, metals, and coal are not renewable; they don't reproduce, sprout, or have sex to produce baby oil droplets or coal nuggets.