The extraction process to remove the lead from the sulfur is very simple, thus lead has been extracted from Galena since the earliest times.Galena from certain regions is rich in silver, and some specimens may contain as much as 20 percent silver. Because of this, silver-rich Galena is also an ore of silver.
Research shows that hiking has a positive impact on combating the symptoms of stress and anxiety, says Gregory A. Miller, PhD, president of the American Hiking Society. Being in nature is ingrained in our DNA, and we sometimes forget that.
There are more than 10 muscles working at the same time when walking, and the heart is one of them. Regular hiking develops, forms and tones muscles of the legs, hips and buttocks. Walking enhances the strength and endurance of these muscles, making it one of the best workouts. Continue Reading.