Interpret data to determine the oldest rock bed. a sandstone contains a 400-million-year-old fossil. a shale has fossils that are over 500 million years old. a limestone, between the sandstone, contains fossils between 400 million and 500 million years old. which rock bed is oldest? explain.

A shale has fossils that are over 500 million years old

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.

Ithink it is space that makes up 70 percent

The answer is b im not sure