imaginate en un viaje interplanetario a un planeta al cual no llega el sol si no tres meses al año como seria el aspecto de ese planeta durante el año? imaginate que por un fenomeno inesplicable una region de tierra no recibe la luz del sol durante un mes describe lo que ocurrira si tuvieras que solucionar los problemas generados por falta de luz que harias¿? a que fuente de energia recurririas ¿? porque¿?

Opinion polls reveal that many people believe that the military buildup of the 1980s came at the expense of pressing domestic problems such as environmental pollution and deteriorating educational and transportation infrastructure. in short, people are becoming aware of

Americans often refer to a country that is not the united states as a

You're doing research for a public essay on alternative medicine. which of the following sources has the most reliable information? a.a post on a social networking site about the undesired side-effects of different alternative medicinesb.a recent government report comparing the results of alternative and contemporary medicine for a specified diseasec.an anonymous article on a medical website that claims the success of alternative medicined.a 2003 study conducted by a medical research center about the effects of alternative medicine