The principle stating that the oldest rocks occur on the bottom of an undisturbed rock sequence is known as?

a. relative age dating

b. superposition

c. original juxtaposition

d. original parallelism

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The correct answer is option B, that is, superposition.

Explanation:

The law of superposition refers to a fundamental law of geochronology, which states that in any unperturbed arrangement of rocks placed in layers, the oldest one comes on the bottom, while the newest layer is present on the top. Each layer is younger in comparison to the one underneath it and of age in comparison to the one found above it.  

The formation of sedimentary rocks takes place due to the gathering of layers in different environments like lakes, seafloor, or desert. The sediments ultimately consolidate to give rise to the layers of rocks. Usually, the lowest layers are older in comparison to the upper layers.  

However, there are some circumstances, where the law of superposition does not apply like when the sequences of rock are pushed over by faulting and folding, or when the molten magma intrudes the rocks present underneath. Paleontologists use the law of superposition to find the order in time when the fossils are found within the layers of rocks.  

stress fractures occur largely in the feet and legs and are common in sports that require repetitive impact, primarily running/jumping sports such as gymnastics or track and field.

succession returns a disturbed

ecosystem to a more stable state. this is also classified into two (2) types:

primary succession and secondary succession. the primary succession arises when

a new land is transformed and a bare rock has been exposed providing an environment

that can be occupied for the first time. while, secondary succession occurs

when a previously occupied environment was disturbed that kills much of all its

community

explanation: