Question

Analyzing Rock Strata
Rocks are made of many ________________ collected over millions of years. The oldest layer is usually
formed at the ________________, and the youngest layer is at the top.
Collectively, these layers are known as ________________ ________________.
Fill in the blanks

Answer 1

Answer:

1. fossils

2. bottom

I don't know the answer to 3, but I hope this helps! :)