What is the relationship between the events of the past and how they shaped World War II?

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; traffic,pedestrians,parked vehicles and intersections;

answer///professionals are constantly on the go,