Answer:
they created oxygen for living species
The correct answer is letter C. Throughout the history of America, land grants have not been very common. As this was a practice that governments did not approve of because of the ancestral settlers that inhabited the areas first. This was a long debate that have spun through the ages and many conflicts arose from this problem.
D. Iowa
The corn belt covers Western Indiana, Illinois, Iowa, Eastern Nebraska, and Eastern Kansas. In these states, corn is one of the dominant crops.
One thing scientists in the late 1700s could determine about the fossils they were finding were fossils in the upper layers were younger than fossils in lower layers. The correct answer is A.
C, an enormous road building project
