Change is often difficult. This is a theme found throughout Jungle Book: Mowgli's Brothers Which detail best supports the theme that change is often difficult?
O Shere Khan wants Mowgli to come with him.
O Mowgli begins to cry after driving the wolves away with fire.
O Mowgli frightens Shere Khan by waving a burning branch.
O At dawn, Mowgli goes down the hillside to meet his own kind.

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.

i truly dont know the answer wait i do its 1,3,4

they protect against unsafe foods and medicines being sold

explanation:

money is the anwser i think