Your flyer should include the following information:

the type(s) of air pollution you will be discussing
the sources of that/those type(s) of pollution
the effects of the pollutant on the environment
the effects of the pollutant on human health
ways we can reduce the amount(s) of that/those pollutant(s) generated

http://nepa.gov.jm/publications/flyers/airpollution-flyer.pdf

heres an link on what it should look like

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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answer; atp and nadph;