What are ways scientists have learned about the inside of the Earth? (More than one answer is possible) A. Earthquake Data

B. Robotic Exploration

C. Volcano Composition

D. The Earth's Magnetism

A, C, and D *maybe B but im not sure abt it*

Explanation:

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.  

read more on -

answer; the correct answer is (beta)