Answer:
sedimentary rock
Explanation:
The fossils are found in sedimentary rocks such as sandstone, limestone and even coal. This type of rock tends to be in very deep layers and for this reason they are easier to house the fossils. they are formed by the melting of other rocks.
X would equal 5. (need more characters)
D why are they going there because they need to know
Usually a hill or volcano I need the abcd things.