New Real Estate Listings In St. Augustine. 1  $265,00057 Lewis Blvd2 Bed | 2 Bath | 118 SqFt. 2  $1,850,000655 S Holmes Blvd2 Bed | 1 Bath | 672 SqFt. 3  $349,00034 E Park Ave3 Bed | 2 Bath | 1613 SqFt. 4  $399,0001981 Glenfield Crossing Ct4 Bed | 3 Bath | 2956 SqFt. 5  $159,900220 Presidents Cup Way UNIT 2072 Bed | 2 Bath | 1055 SqFt.
The functional earth is used for interference suppression. It is a low-impedance current path between the circuitry and earth and is only used to improve the equipment's performance and not (!) for protective purposes.
The Earth contains four spheres: hydrosphere, atmosphere, geosphere, and biosphere . The hydrosphere is a dynamic mass of water that is continually on the move. It represents â¦water that is at or near Earth's surface. The hydrosphere comprises 71 percent of Earth's surface and 97 percent of Earth's water. Freshwater, underground water, streams, lakes, ice, and glaciers are included in the hydrosphere. The atmosphere is the Earth's gaseous envelope. It is thin and tenuous and it protects us from the sun's heat and ultraviolent radiation.