How are sedimentary rocks layers deposited

Question: How are sedimentary rocks layers deposited

it is formed from the compaction, cementation, and the recrystallization of sediments he squeezing together of layers of sediment due to the great weight of overlying layers of rock.

Explanation:   all this happens over time like a fossil in the water breaks doen over time and some times it breaks down in layers.

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(jacemorris04)

the answer that best describes the relative refractory period in the neuron is the resting membrane potential is restored, but concentrations of sodium and potassium are not restored to their original state.

the refractory period is the time during which another stimulus given to the neuron will not lead to a second potential. thus, because na+ channels are inactivated during this time, additional depolarizing stimuli do not lead to new action potentials.  

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