Neurotransmitters are Blank Options choose your answer... messengers that help neurons communicate with each other. Neurons require the correct Blank Options choose your answer... and amount of neurotransmitter to fire their electrical signals. Neurotransmitters come in Blank Options choose your answer... different forms. There are more than Blank Options choose your answer... types of neurotransmitters.

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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