Administrative skills are often described as . people-focused skills noncritical skills for leaders highly creative skills fundamental skills for leaders

i have to go with a for this one

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; through play and social interaction;