GENETICS AND EVOLUTION
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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When younger rocks are on bottom when plates haven’t shifted
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When older rocks are on bottom
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When plates move and cause a shift in the earth
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When oldest rocks are on bottom and youngest at top
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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 in layered strata (sedimentary rocks or lava flows), the oldest layer will be at the bottom of the exposed strata and the youngest at the top.
Detailed explanation-5: -Sedimentary rocks are normally laid down in order, one on top of another. In a sequence, the oldest is at the bottom, the youngest is at the top. This is the principle of ‘superposition’.