Answer:C) Natural selection
Explanation:
C) Natural selection is the process under which species with resistant traits are able to survive better and adapt to different environmental pressures , climate changes and competition for resources or food and are able to reproduce as many as possible of the same species with similar traits , as a result of this these traits are carried from generation to generation.
Answer:
Expansionary fiscal policy occurs when the Congress acts to cut tax rates or increase government spending, shifting the aggregate demand curve to the right. Contractionary fiscal policy occurs when Congress raises tax rates or cuts government spending, shifting aggregate demand to the left.
Answer:
It was most likely a different climate millions of years ago when those fossils were created hope this helps :)
The branch of government that can do that is the branch of government with the president that can veto laws