LIFE SCIENCE

Detailed explanation-1: -This is known as uniformitarianism: the idea that Earth has always changed in uniform ways and that the present is the key to the past. The principle of uniformitarianism is essential to understanding Earth’s history.

Detailed explanation-2: -First publicly promoted by James Hutton, a Scottish geologist (1729-1797)-Summary of Hutton’s idea: “The present is the key to the past.” Uniformitarianism suggests that slow processes, over great periods of TIME, can account for most of the great features on the planet’s surface.

Detailed explanation-3: -uniformitarianism, in geology, the doctrine suggesting that Earth’s geologic processes acted in the same manner and with essentially the same intensity in the past as they do in the present and that such uniformity is sufficient to account for all geologic change.

Detailed explanation-4: -A uniformitarian believes that the processes observed today are key to understanding Earth’s past. Catastrophism describes Earth’s history as being stable with intermittent, short-lived, and cataclysmic events drastically shaping the surface.

Detailed explanation-5: -Uniformitarianism is a theory based on the work of James Hutton and made popular by Charles Lyell in the 19th century. This theory states that the forces and processes observable at earth’s surface are the same that have shaped earth’s landscape throughout natural history.