Composite materials are created by combining two or more substances with dissimilar properties.
Composite materials have distinct properties that distinguish them from their constituents, and the constituents can be easily distinguished within the composite materials because they do not blend together.
Some composite materials are abundant in nature. Wood, for example, is a composite material made up of cellulose and lignin.
The carrying capacity of an environment is limited by the available energy, water, oxygen, and minerals, and by the ability of ecosystems to recycle the remains of dead organisms through the activities of bacteria and fungi
