What statement best describes how tornadoes form?

b warm wet air rises and punches cold dry air down causing the air to spin

B

Explanation:

I'm pretty sure hot air rises, so its not A

Most tornadoes form from thunderstorms. You need warm, moist air and cool, dry air. When these two air masses meet, they create instability in the atmosphere.

Rising air within the updraft tilts the rotating air from horizontal to vertical.

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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