They would contain a higher concentration of minerals and nutrients than the surrounding soil<span />
The answer it TRUE.
The Spanish-American War was war fought between the United States and Spain in 1898 that put an end to Spanish colonial rule in the American Continent and resulted in American acquisition of territories in the western Pacific and Latin America. The battles of this war took place in the Caribbean and the Pacific, as Spain held territories in these areas. One of the major battles that took place in the Caribbean was the Battle of Santiago de Cuba in which the United States defeated Spanish forces, sealing American victory in the Spanish–American War and leading to Cuban independence from Spanish rule. One of the battles that took place in the Pacific was the battle in Manila Bay in the Philippines, which constituted one of the major battles of the Spanish-American War and the end of the Spanish rule in the Philippines.
Then you have military geniuses on the confederate side, Stonewall Jackson, Robert E Lee, and the more controversial leaders Nathan Bedford Forrest and Stand Watie. While they fought for the wrong side, they were great leaders. The north had generals and leaders like grant, Farragut, Mclellan, and Custer.
If you mean "resources" physically, I can give you an answer based on searching stuff up and reasearching. Central Asia has the largest reserves of zinc, lead, and chromite. Also, a country called "Kazakhstan" is in the top ten for supplies of copper, iron, gold, and manganese. A country called Turkmenistan also is rich in natural gas, having about 5% of all the world's natural gas. I hope this well help you out.