Question

Unlike catastrophism, _______ states that mountains formed slowly over time.

Answer 1

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.

yes this is correct.

Answer 2

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.