The nile valley and the delta are areas with a. a high standard of living b. cool temperatures c. a high population density d. abundant rainfall"c." might be the correct answer

The deltas meant there will be more farm land which in turn means less population density. It could be A depending on time frame because for early humans Egypt was rich but now is struggling economically. Not B bc egypt is arid and dry dessert. Rainfall is also hard to come by in egypt. I would say B this a question I would ask the teacher about

C.about 10% i think

Answer// dinosaurs emerged during mesozoic era;