Which of the following statements are true regarding human p…

Which of the following statements are true regarding human populations?    I. Fertility rates are the same for populations across the globe. II. Education for girls and decreased poverty rates are associated with lower fertility rates. III. The overall growth rate for humans (all populations) is decreasing, but remains positive. IV. The growth curve for humans shows a logistic trend. V. The global growth rate has dropped due to lower fertility rates.  

Consider a constraint  graph: Linear connections between nod…

Consider a constraint  graph: Linear connections between nodes are in this sequence, V1-V2-V3-V4-V5, and each of these nodes is connected to a sixth node V0.  Respective domains are as follows: V0={1}, V3={1,2,3},   all other nodes ={1,3} Constraints: No adjacent nodes may have the same value. Which one below is a solution?