Las ideas principales en este párrafo son:
en otras palabras se puede afirmar que la escritura que se conoce en la actualidad tuvieron orígenes a diferentes partes del mundo y fueron creadas por diversos grupos humanos para responder a sus necesidades conmutativas

You have a poultry farm and a poultry-processing unit. which product can you make using the waste products from your processing unit?

Alex is the head photographer for the yearbook and the newspaper. she has a large staff of assistant photographers because they need to take pictures at all of the school events. she knows that some of her photographers have better cameras and can take action shots at sporting events, and that some of them are good at taking candid pictures in the hallways. she sets firm deadlines so she has enough time to look through all of the shots and choose the best ones. she gives her photographers constructive feedback to them improve their pictures. respectful enforcer warlord doormat peacemaker

Cartels control the production and pricing of goods mainly through a) the elimination of competition. b) the cooperation of their members. c) the limitation of price controls. d) the manipulation of government pressure.