They show that there was an ocean over the plains long ago, and fossils are always used to elaborate on the history of life/how it developed.
Hi!
Our sky is blue because air molecules will span out <em>blue </em>light from our sun more than <em>red </em>light from our sun.
If you look at the sun, you'll see orange and red colours due to the fact that the suns blue light has already been disbursed away from our line of sight.
Hopefully, this helps! =)
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.
