we dont know?
Fossils are formed in sedimentary rock because the rock is formed at temperatures that do not destroy the fossils like the igneous rocks would.
sedimentary rocks.
sedimentary rocks
Voids left behind by once present fossils are called 'trace fossils'.
Sedimentary rocks are rocks that are formed by layers of different things compacting very tightly. These layers can have a lot of different things in them, like fossils. So, sedimentary rocks are partially made up of fossils.
index fossils are useful for figuring out the age of a set of disturbed rock layers by index fossils are used to determine when rock layers were formed so if they were used to figure out the age of a set of disturbed rock layers than they can also figure out when they were formed .
Sedimentary rock is the most common type of rock that contains fossils. Fossils are formed when the remains of plants and animals are buried in sediment, which hardens into sedimentary rock over time, preserving the fossilized organisms.
Voids left behind by once present fossils are called 'trace fossils'.
Because sedimentery rock is formed under the sea, sediment collects at the bottom of the ocean, and so does a few dead sea creatures, then t gets squashed by other sediment, igneous rock is formed by lava cooling, so there is no fossils in it.
A rock formed from the remains of living things is called a sedimentary rock. This type of rock is formed through a process known as lithification, where sediments such as dead plants or animals accumulate and become compacted over time. Examples include limestone, coal, and chalk.
Because sedimentery rock is formed under the sea, sediment collects at the bottom of the ocean, and so does a few dead sea creatures, then t gets squashed by other sediment, igneous rock is formed by lava cooling, so there is no fossils in it.
A fossil fuel