Answer:
The Law of Superposition places the youngest rock on top of older rock, except when faults and igneous rock are present (option 1).
Explanation:
The law of superposition of strata -proposed by Nicolás Steno based on the observations of Avicenna- states that the rock strata observed in the earth's crust are the product of the deposit of rocks progressively over time, leaving the newest rocks in the surface and the oldest in lower strata.
In successive studies and observations made by Steno, this scientist could appreciate the existence of some exceptions to his principle of superposition:
- <em>The presence of geological faults could cause an alteration in the arrangement of the layers, different from the order they should have.
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- <em>Magma activity is a factor that would lead to the deposit of igneous rocks between the layers of already formed rocks.</em>
The Law of Superposition is, in geology, the basis on which the discipline of sedimentary stratigraphy is based.
Learn more:
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The atmosphere layer closest to the earth is referred to as the troposphere. Beyond the troposphere are the stratosphere, the ozone layer, the mesosphere, and the thermosphere. The atmosphere is made up of 78% nitrogen, 21% oxygen, and smaller amounts of argon, carbon dioxide, helium, and neon.
I think that they can either use fossils or age of rocks
