Answer:
During the 1960's the disclosure of enormous gas and oil fields in Alaska accelerated the change of most coal framework to other petroleum products. During this period Usibelli Coal Mine bought the Suntrana mine and the mining activities in the Matanuska coal fields stopped activity.
Great plains is the broad interior are of north america that used to be grasslands
The answer would be Petrified Remains. This because the fossilization processes needs some remains to form in , some way before they can cast it.
Answer:
Sierra Madre Occidental
Explanation:
this mountain range takes up nearly 140,000 square miles of Mexico.
