Las técnicas de estudio constituyen formas de actividades que a aumentar la productividad del estudio es:

answer: not really

explanation: the disadvantages of wikipedia are:

open to spam anyone can edit it requires internet to collaborate.

the advantages of wikipedia are

anyone can editeasy to learn frompeople from other countries can share the same document

The  pharaoh  was at the top of that pyramid. in the level below were nobles, priests, and officials. they the  pharaoh  govern egypt. so did soldiers, who fought battles for their ruler, and scribes,  who kept records  for the government and the temples. i know this