Question

What are fossil formations, and how do they determine the age of land forms?

Answer 1

So, fossil formations are created when a plant or animal dies in a watery environment and is buried in mud and silt. The tissue decomposes and only the bones and shells are left behind. Over time, sediment builds up over the bones/shells and hardens into rock. Rock layers, and the fossils they contain toward the bottom of a stack of sediments are older than those found higher in the stack. This is called Radiometric Dating.

Step-by-step explanation:

Answer 2

Scientists combine several well-tested techniques to find out the ages of fossils. The most important are Relative Dating, in which fossils and layers of rock are placed in order from older to younger, and Radiometric Dating, which allows the actual ages of certain types of rock to be calculated. Relative Dating.