GENERAL ANATOMY
EMBRYOLOGY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Younger rocks layers are on top of older rock layers
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Fossils are found in sedimentary rocks
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Older rock layers are on top of younger rock layers
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Absolute age dating
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Detailed explanation-1: -law of superposition, a major principle of stratigraphy stating that within a sequence of layers of sedimentary rock, the oldest layer is at the base and that the layers are progressively younger with ascending order in the sequence.
Detailed explanation-2: -The law of superposition is one of the principles of geology scientists use to determine the relative ages of rock strata, or layers. This principle states that layers of rock are superimposed, or laid down one on top of another. The oldest rock strata will be on the bottom and the youngest at the top.
Detailed explanation-3: -The principle of superposition states that the oldest sedimentary rock units are at the bottom, and the youngest are at the top. Based on this, layer C is oldest, followed by B and A. So the full sequence of events is as follows: Layer C formed.
Detailed explanation-4: -The Principle of Superposition states that younger layers of rock lie on top of older layers of rock. Each layer is older than the one that exists above it. Layer D was deposited first, and is therefore oldest, because it is at the bottom.
Detailed explanation-5: -Law of Superposition-which states that, in any undisturbed sequence of rocks deposited in layers, the youngest layer is on top and the oldest on bottom, each layer being younger than the one beneath it and older than the one above it.