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.
Venusâ mass is only approximately 81% of Earthâs mass, so it is not surprising that Venus is also less dense than our own planet. Venus has a density of 5.204 grams per cubic centimeter. Earth is the densest planet in our Solar System.ust like the size of the planets, the density of the planets varies widely. All of the 4 inner planets â the planets closest to the Sun â are much denser than the four outer planets. That is because the inner planets, which are also called terrestrial planets, are made up of heavy metals and rocks.