What purpose does the first section, "Before the Birth of Modern Mount Rainier," serve in the text? It explains why it is important for scientists to study Ο Α. the early history of active volcanoes. It defines the question about how volcanoes form O B. that the author seeks to address. O It provides a historical background for the later C. sections that describe more recent volcanic events. It describes the importance of lahars and landslides throughout the lifetime of a volcano.​

Aids is growing fastest in the poorest countries of africa. these nations don’t have enough doctors, medical labs, or money for medicine. a recent study showed that only a small percentage of hiv-infected children in africa are getting any medical treatment at all. what central idea is emphasized in both sources? the hiv/aids epidemic in africa is serious. the hiv/aids epidemic in south africa is serious. the hiv/aids epidemic among african children is serious. the hiv/aids epidemic among south african children is serious