Name three features of a river and explain how these features help the civilization.

Fertile soil, Water source and Transportation.

First, Fertile soil gives well, soil for crops. Making a good food source.

Second, water. Water is needed to survive, and a river is water.

And finally, Transportation. The water is a good way to travel by boat- or you could transport trades.

hope this helps

b. after i get up in the morning,

explanation:

after is a subordinating conjunction that introduces a time clause. time clauses are dependent clauses used to indicate when something happened.

the clause "after i get up in the morning" tells when the action in the main clause (drinking a cup of coffee) happens:

"after i get up in the morning, i drink a cup of coffee." it is the most logical choice of all.

answer; i believe the two groups were irish immigrants and chinese immigrants;