D.) high level of urbanization
This is because urbanization is a key element.
Hope this helps!! :)
Uniformitarianism
fossils
radioactive decay
48 million
after
The youngest age of the shale is 910 ka. According to the principle of inclusions, the shale formed before the tephra, so the tephra must be younger than 910 ka.
Unconformites is the answer to the question
C - A typical star i just took the test and it was correct
