Options A and D are true. The other two options are absurd and not even based on fact while A & D are true concerning this part of Africa at that time.
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.
The statement is - True.
Mount Elbert has an elevation of 4,401 meters (which is almost three miles), and it has a prominence of 2,772 meters. It is the highest summit of the Rocky Mountains of North America. Mount Elbert also represents the highest point of the state of Colorado, and it is also the highest point of the Mississippi River drainage basin which covers 41% of the USA's territory. More specifically this peak is in the Rocky Mountains Range, Sawatch Range, Southern Rocky Mountains Range.
Yes, organic material in soil is more productive.
