Most of the food people eat comes from farms. what type of energy do crops such as corn and wheat need in order to grow?

they need sunlight and water to grow and be healthy as adults

what's the rest of the question

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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