Dense means closely compacted and as you see Shanghai is a small place with abunch of people so all those people are 'closely compacted' also,Shanghai is the one with the most people in a small aera out of the answers
The litosphere is the earth's outermost layer. This is not a whole continuous piece as its crust and topmost mantle is made up of hard and rocky outer surface and is sub divided into tectonic plates. The lithosphere stretches to about 60 miles.
