Which of the following is true of all four civilizations—india, china, egypt, and sumer? select all they developed in river valleys. they developed irrigation systems. they invented plumbing systems. they believed in many gods. they were located between two rivers. they established trade routes.

he did it to save us from our sins, so we can see him in heaven 1 day. it's because he loves us so much. he used himself as the final sacrifice, so that we could be forgiven for our sins, so that we can see him in heaven, if we believe.

the award is named for an american naval historian and theorist, rear admiral alfred thayer mahan, united states navy who, through his writing, provided stimulus and guidance to those who share in the defense of the nation.