Lyell's Ideas That Gradual, Everyday Geologic Processes Had Shaped Earth

Multiple Choice

Lyell's ideas that gradual, everyday geologic processes had shaped Earth challenged the prevailing estimate of Earth's age at ____, because ____.​

A) 6 billion years old; only catastrophic geologic events could sculpt Earth's surface​
B) ​600 million years old; species needed millions of years to evolve
C) ​600,000 years old; nobody had observed the evolution of species
D) ​60,000 years old; geologic processes quickly change landscapes on Earth's surface
E) ​6,000 years old; such slow geologic processes would take millions of years to sculpt Earth's surface