Who was the author of the book Principles of Geology? The book presented arguments to support a theory of geological change, proposing that the earth was subject to slow but continuous erosion and uplift.

Charles Lyell

Explanation:

Charles Lyell was a Scottish geologist who explained the former transformations in the Earth's surface in his geology masterpiece. This book is considered as the most significant scientific book ever and has 3 volumes. Lyell expressed how the surface of the Earth was changing by the time and reinforced his argument for uniformitarianism through geology.

Uniformitarianism: It is the idea that the Earth's natural processes behave the same way today as they were in the past and will keep on doing in the future as well.

The correct answer is "Charles Lyell".

Explanation:

Charles Lyell was a notorious Scottish geologist that associated events of Earth's history with natural events taking place at the same time. In 1830, Charles Lyell published the book "Principles of Geology", associating the formation of the Earth's crust with different small and vast natural events. Charles Darwin's was largely influenced by Lyell's ideas and he took his book during the famous travel trough the Galapagos islands.