My little brother does not understand this social studies question "Do you know what country or countries your family EMIGRATED from?

New communication technologies, improved transportation, and advanced military weapons made it possible for countries to speed up acquiring territory. rule large amounts of territory. fight off competition from opposing nations. expand their economies, which aided in conguest.

Susan, a los angeles resident, appears on a new nbc reality show, my big fat obnoxious accountant. susan is the first to be "kicked off the island" and leaves the show in shame. on her way out, she throws a temper tantrum and destroys some of the furniture on the set. nbc and the production company that made the show are incorporated and headquartered in new york, where the show is filmed. nbc and the producers have offices and conduct business in los angeles and san francisco. humiliated by the loss, susan plans to sue nbc and the producers of the show for breach of contract, fraud and intentional infliction of emotional distress, seeking $200,000 in damages. susan is considering filing her lawsuit in california state court, new york state court or the federal courts. as to each of the state courts, indicate whether personal jurisdiction exists and why.

Which statement is correct? the speed of the light ray is the same in air and medium a. the speed of the light ray is the same in air and medium b. medium a and medium b have different densities because light refracts at different angles. medium a and medium b have the same density because the light ray strikes both at the same angle.