Which of these neurotransmitters is not released at sympathetic neuroeffector junctions?

Epinephrine

Epinephrine is usually produced by the two kinds the adrenal glands and certain neurons.  It plays an important role in the fight-or-flight response by increasing blood flow and also to muscles, output of the heart, pupil dilation, and blood sugar.  

where is the diagram?

if you insert the diagram ill be able to you

sulfur dioxide

explanation: acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. these substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain.