Which of the following is not true about mass movement?

a. some mass movement is too slow to be seen.
b. mass movement always leads to landslides.
c. gravity is the driving force behind all mass movements.
d. mass movement is always downslope.

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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the answer is b)3/8x+1