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.

considered the turning point in pacific war. the japanese tried to lure the american navy out so it could be destroyed but failed. the americans were led by admiral chester nimitz. the victory by america would put them on the offensive for the remainder of the war.

2. a land bridge connected asia and north america thousands of years ago.

4. crossing the land bridge would have been simple for the first migrants.

5. people might have crossed a land bridge while hunting animals.