Answer
1. Arabs
2. failed to consider Arabs interest.
Explanation:
just did it on edge
The first one is property, but I do not know the others. Sorry.
For starters, it would flood and leave silt which helps plants grow and makes fertile land.
Answer:
The Roman's helped the spread of Christianity by giving a sense of security. stability and safety when the church was first started. Roman roads also made safer traveling routes making it easier to spread Christianity.
castle building cause that what they did