Forests are considered nonrenewable resources primarily because of the. Choose the correct answer.
a. difficulty in engineering wood alternatives
b. challenge to harvest fibers from other plants
c. demand for wood in a wide variety of products
d. decreased need for wood products in manufacturing

The truman doctrine was an american foreign policy whose stated purpose was to counter soviet geopolitical expansion during the cold war. it was announced to congress by president harry s. truman on march 12, 1947, and further developed on july 12, 1948, when he pledged to contain threats to greece and turkey