Bioherms are made of
sand, silt, and clay
algae, corals, and shells
carbonic acid and limestone
layers of evaporated salt

Countries in this region are trying to achieve development. a. attainable c. sustainable b. suspendable d. intangible

Many somalian refugees sought entrance to the united states in 2006 and 2007. describe factors that encoura somalians to leave their country in the 1990s and 2000s

Which of the following statements does not describe shi huangdi? a. shi huangdi was the first emperor of the qin dynasty. b. shihuangdi wrote the lunyu, the most important text in confucianism. c. shihuangdi conquered city-states to unite china. d. shihuangdi began the process of building the great wall of china.