How did sir charles lyell's work scientists?
a.
by demonstrating the causes of earthquakes.
b.
by proving that earth’s age is very young
c.
by providing an understanding that most changes on earth’s surface happen slowly
d. by explaining how flooding changes the surface of the earth
i wold go with c but i still need

Sir Charles Lyell's work help scientists by providing an understanding that most changes on earth’s surface happen slowly. Option C is correct.

Sir Charles Lyell is a very known lawyer that diverted himself to the field of Geology. Hi is well known for writing his book, "Principles of Geology". In this book, he explained that valleys were formed from the gradual process of formation and that the Earth went throught periodic changes throughout.

number 4. should be the correct answer

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