Which of the following is not a linear distance measurement?
a) a parsec
b) a light-year
c) an arcsecond
d) an astronomical unit

Achild’s often are influenced by the belief systems of his or her parents. a. ideologies b. bilingualism c. territoriality d. cultural diffusion

These factors threaten north americas ecosystems

Based on the information in the graph, what can you conclude about humans in the world in general?