Your mom is so awesome hahahahahahahahaha
This describes the change in energy-use and demand patterns in accordance to the variations in economic status of the household. the lower the income of the households, the more they rely on biomass fuels, such as wood and dung
That's a hard one to answer but from all my reading it would seem there was one main reason. The Berbers were nomads so they never were able to be collectively together to form an army against invaders. Therefore, the Berbers were constantly being conquered by someone. Each time they had to learn new laws set out by the conquerors. When the Arabs came with their mighty army, they knew they couldn't fight so giving in was in an odd way a protection system of kinds.
Answer:
1) Fueron (Plural of "Ir" (go) in past tense. Ellos = they.)
2) Fue. (Ella fue, third person, past)
3) Fueron (same as question one; modifying this time "Ustedes")
4) Fuiste (second person, past tense of "Ir": You went)
5) Fuimos (Fourth person (we) and in the past).