When you have reached the step of in the speechmaking process, you need to decide whether you are going to inform or persuade your audience, or mark a special occasion?

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; and function;

answer; with few regulations protected the prices of crops which made farmers leave their farms and migrate to the big cities to work in factories;