Question

why are Sedimentary rocks known as store house of fossil fuel? Give reason.

Answer 1

Explanation:

Sedimentary rocks are called a storehouse of geological history as their formation has taken place due to depositing, accumulating and concentrating minerals in the form of beds or layers. The sequence in which these layers appear helps us understand the history of earth.

Answer 2

Answer:

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Explanation:

Sedimentary rocks contain the majority of fossils, although metamorphic rocks, like slate, can contain fossils. The reason is because of the way the rocks are formed. Sedimentary rocks are made up of sediments that bury organic tissues, without damaging them, unfortunately the soft tissue will still decay leaving behind bones and shells.The imprint of the soft tissue can be preserved if it is slowly replaced by minerals. The reason why metamorphic rocks rarely contain fossils is because they were destroyed by the heat and pressure that formed them. Extrusive igneous rock(lava flows) could trap plants and animals but the heat would destroy them leaving a cast fossil at best.