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.
The largest mountain range in Europe are the Carpathians (1500km long), with the Alps being the highest.   The longest mountain ranges in Europe are:   1. Scandinaviâ¦an Mountains - 1762 kilometers (1095 miles)   2. Carpathian Mountains - 1500 kilometers (900 miles)   3.