How often is the president required to present a state of the union address to congress?

explanation:

allergens: overstimulate the nerve system

neurotics: attack nerve cells

mutagens: damage or otherwise alter dna sequence

generators: cause defects during growth and development  

carcinogens: cause unchecked cell growth

i hope you get the idea according to me these are the effects that happened.

u idek                                                                                                                                               /

answer; /// the rich had great responsibilities to society;