Give scientists clues about the kind of organisms that lived in an ancient environment

The fossils are able to give scientists clues about the type of organism that lived in an ancient environment.

Explanation:

Fossils are able to give scientists clues about the type of organism that lived in an ancient environment. That's because fossils are records of living things that were alive hundreds and millions of years ago.

When we talk about fossils we immediately think of bones, but the fossils can be taken, feces, leaves, roots, hair, among other factors of a living organism, which was trapped in rocks for many years, kept conserved and can be studied and evaluated.

thermophiles, notice the prefix thermo.

the answer is d. exposing corruption in the church