Answer:
D. was rejected at first, but later accepted by the scientific community
Explanation:
when alfred wegener first proposed his theory of continental drift, he was basically a laughing stock in the scientific community. they didn't accept his theory and thought it was crazy and unbelievable. despite this, wegener kept believing in his own theory, but unfortunately it wasn't really until after he died that the scientific community actually accepted his theory of continental drift.
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.
Temperature and density increases from the crust to the core.
