Answer:
idiom.
Explanation:
The phrase to smell a rat is an idiom that dates back to the 1500s. To smell a rat means to become suspicious that something in a given situation is not quite right, to believe that someone is attempting to trick you or that the circumstances are not quite right.
Answer:
paleontology
Explanation:
Permineralization is a process of fossilization in which mineral deposits form internal casts of organisms