What do people traditionally put on top of a christmas tree?

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.

its d i know cause i've been googling it

answer; clear and present danger test;

answer; you are making a normative argument and i am making a positive argument;