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

question 78

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

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Definitions:

Normal Distribution

A bell-shaped frequency distribution curve that is symmetric around its mean, describing how values of a variable are dispersed or spread.

Standard Deviation

A measure of the amount of variation or dispersion of a set of values, showing how much each value in the set varies from the mean.

Mean

The average of a set of numbers, calculated by adding all the numbers together and dividing by the count of numbers.

Annual Revenue

The total income generated by a company or organization in one fiscal year before any deductions are made.