The Murray river is the longest river in Australia
Increased use of insulation in a home is very useful when it comes to having a better quality air in the home. With proper insulation, lots of the things that can cause an air pollution are neutralized. Dust and other pollutants are stopped on the filters and they can not get inside, thus allowing you to have a better quality air indoors.
Wind, solar, and hydroelectric power are all eco friendly
Asteroids are made up of metals, oxygen and silicon. Comets are made up of ice, dust and rocky material.
