Your family looks at a new house right on a riverbank. why might they hesitate to buy the house ?

They would hesitate because the land might have a large amount of moisture which could lead to the land eroding and the house slipping or cracking.

Hope this helps :-) 

There are allot let me mention a few. 1. catholicism 2. orthodox3. lutherans 4. protestants. they are different because, catholicism has a pope but not the orthodox even though they are almost the sames

True. all the continents were once together, but they began to move apart as time went on.