Custody assigns one parent all legal rights, responsibilities, and duties as parent.
a. sole
b. joint or shared
c. physical
d. legal

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.

answer; continous;