Oil shale
It was discovered in the region in the 1970s. it spurred economic growth in the neighboring areas of Colorado. however major a discovery it was, the industry declined leading to copper, silver and gold being the most important mineral resource in the Rockies mountain.
Americas support the ongoing struggle by Cubans and Filipinos against Spanish rule and the mysteries explosion of the battleship caused them to declare war against Spain
Answer:
A
Explanation:
the first cause of decline was the arab war
he went after more antitrust
The answer is the <span>united states</span>
