Using simple methods like tank banks, low-flow showerheads and faucet aerators you can retrofit your home for under$50. By using water-saving features you can reduce your in-home water use by 35%. This means the average household, which uses 130,000 gallons per year, coulod save 44,00 gallons of water per year.
Specifically, Serra Da Estrela ['Mountain Range of the Star'] is the highest mountain on mainland Portugal. At its highest point, it measures 6,539 feet/1993 meters above sea level.
Portugal (Monte Pico,Azores Islands) With an altitude of 7,711 feet (2,351 m) above sea surface and 20,000 feet (6,098 m) below sea surface to the sea floor, Monte Pico in the Azores Islands (Portugal) is the highest underwater mountain in the world.