Q: Who was Nicolas Steno?

A: Nicolas Steno was a Danish scientist, a pioneer in anatomy and geology. He later became a Catholic bishop.

Q: When did he begin to question accepted knowledge of the natural world?

A: By 1659, he began to question the knowledge of the natural world accepted in his time.

Q: What did he question about fossils and rock formation?

A: He questioned the idea that fossils grew in the ground, and the explanations of rock formation.

Q: How did his investigations affect modern science?

A: His investigations made him one of the founders of modern stratigraphy and modern geology.

Q: What other fields was Steno involved in besides geology?

A: Besides geology, Nicolas Steno was also a pioneer in anatomy.

Q: What happened to Steno later on in life?

A: Later on in life, Nicolas Steno became a Catholic bishop.

Q:What is stratigraphy?

A:Stratigraphy is an area of geology that studies layers of sedimentary rocks and their relationships with geological time periods.