Arcata is also the location of the Arcata Field Office of the Federal Bureau of Land Management, which is responsible for the administration of natural resources, lands and mineral programs, including the Headwaters Forest, on approximately 200,000 acres of public land in Northwestern California.
Compton's, 1995. They divide the mass of the Earth by the volume, which gives the average density of the material in the earth as 3.2 ounces per cubic inch (5.5 g/cm 3).. 5.5 g/cm 3. Orbits Voyage Through The Solar System. Phoenix, AZ: Software Marketing, 1989. Mean Density: (water = 1) 5.52.. 5.52 g/cm 3. Morse, Joseph Laffan.
Population density varies by orders of magnitude around the world. According to a Wiki list. of 239 sovereign states and territories around the world, world population density (land area. excluding Antarctica) is 51 people per square kilometer, or 132 people per square mile. The. densest territory on the list, Macau in China, has 48,000 people per square mile.