Map A Dot density map with a light concentration of dots centered on Chang'an. The dots gradually fade out and are slightly heavier along the edges of the rivers. Map B Dot density map with a heavy concentration of dots centered on Chang'an. The dots spread out and are slightly heavier along the edges of the rivers. Compare the two maps. Which of these quotes correctly describes Map A in comparison to Map B?

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.

fertile good for trade etc

because the early people found out about it.

answer; which categories of people are most at risk of becoming a criminals;