Answer:
A shale has fossils that are over 500 million years old
Step-by-step explanation:
- A shale is a fine-grained sedimentary rock that is a mixture of the clay minerals and the other particles. Has about the variation in the thickness of the ricks ad it exhibits varying degrees of feasibility. Being composed of the clay minerals thus fossil s and even the raindrops are preserved in the shale bedding places and they consist of various carbon deposits.