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QveST [7]
3 years ago
14

Concerning relative ages of the shale and sandstone, ____________.A. the shale must be older, according to the principle of supe

rpositionB. the sandstone must be older, according to the principle of superpositionC. the shale must be older, according to the principle of componentsD. their relative ages cannot be determined from the information given

Geography
1 answer:
nata0808 [166]3 years ago
3 0

Answer: A. the shale must be older, according to the principle of superposition

Explanation:

The layers of the surface of the earth have been formed over a long period of time. Rock pieces, sand and mud from water bodies form sediments and over time the bottom layer becomes rocks. Dead organisms trapped in these materials become fossils and mud is transformed into shale.  

Looking at any of these transformed layers of the earth crust, we can conclude on their age and which was formed earlier, thanks to the law of Superposition. This law states that any given layer must be younger than the layer below it. Because shale  is formed under sandstone, the shale is older.

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