The population of a small town decreased from 32,500 people in 1990 to 28,200 in 2000. what is the percent decrease in population? 15 10 13 87

One of the main reasons societies settled along rivers in the neolithic era was because a) the village elders demanded it. b) the land there was more valuable. c) it was more safe and secure there. d) it provided irrigation for farming.

Which of the following regions suffers the most from acid rain? a. the area around vancouver c. the area below atlanta b. the area below detroit d. the area above montreal

After world war i, how did the us economy compare to that of germany?