Which phrases describe an extrusive rock? Check all that apply

i hope i am not late lol, anyway,fine texture

- small crystal size

Explanation:the extrusive rocks are type of rocks that form on the surface of the earth, be in water or on land

(A) - how rocks change from one type to another

(B) - which processes are involved in rock changes

Explanation:

These are correct. Did them on edge 2020.

I hope this helps <3

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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what subject is this