The mass-abundance of the nine most abundant elements in the Earth's crust (see main article above) is approximately: oxygen 46%, silicon 28%, aluminum 8.2%, iron 5.6%, calcium 4.2%, sodium 2.5%, magnesium 2.4%, potassium, 2.0%, and titanium 0.61%.he mass-abundance of the nine most abundant elements in the Earth's crust (see main article above) is approximately: oxygen 46%, silicon 28%, aluminum 8.2%, iron 5.6%, calcium 4.2%, sodium 2.5%, magnesium 2.4%, potassium, 2.0%, and titanium 0.61%.
Choosing Disc Weight. Disc golf discs come in a variety of different weights. Most discs weigh between 165 and 175 grams. Some discs also come in special plastic blends designed to weigh less. The Professional Disc Golf Association regulates how heavy a disc can be based on the discs diameter.
The New 2013 Yamaha Drive Golf Carts are now available at Golf Carts Inc. Email us at sales@golfcartsinc.com for an exact shipping quote or visit our shipping page for a list of approximate shipping charges. The 2013 Yamaha Drive is now in stock at Golf Carts Inc. For Generations, Yamaha has built sports vehicles that are crafted to exacting specifications but also designed to bring a smile to the driver's face. The Yamaha Drive is that kind of golf car.