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Definitions from the Web

Uniformitarianism

Definition:

Uniformitarianism refers to the scientific principle that states that the same natural laws and processes that operate in the present have always done so throughout the history of the Earth. It suggests that geological and biological phenomena can be explained by gradual, incremental changes over long periods of time.

Senses:

1. Geology: In geology, uniformitarianism posits that geological formations and features seen today can be explained by the same geological processes that have been operating in the past.

2. Biology: In biology, uniformitarianism proposes that biological evolution occurs through gradual changes in species over prolonged periods, governed by the principles of natural selection and adaptation.

Sample Sentences:

1. Geology:

1. The theory of uniformitarianism suggests that the Grand Canyon was carved over millions of years by the Colorado River.
2. Uniformitarianism enables scientists to study the present geological processes and extrapolate their effects on the formation of ancient rock layers.

2. Biology:

1. Charles Darwin's theory of uniformitarianism revolutionized the understanding of biological evolution.
2. Uniformitarianism explains that species evolve gradually over time, with environmental factors influencing natural selection.

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