Parts of the teeth include: 1  Enamel: The hardest, white outer part of the tooth. Enamel is mostly made of calcium phosphate, a rock-hard mineral. 2  Dentine: A layer underlying the enamel. Dentine is made of living cells, which secrete a hard mineral substance.  Pulp: The softer, living inner structure of teeth.
Though they vary significantly, transportation costs accounted for 40% of the average overall cost of coal delivered at electric power plants in 2010. On average, nominal U.S. rail rates for shipping coal grew from $11.83 to $17.25 per short ton from 2001 to 2010.
The average moving cost for hiring a truck to take you from Northern Virginia to Boston for example would cost you approximately between $650 and $750. If you decide to hire a truck for moving, this would cost you on average between $650 and $750 which is a price that does not include fuel cost.lso, usually one hour more is going to be charged for you on behalf of the moving company and this is travel time â the time the moving experts need to reach to your living place. The average moving cost per hour varies between $85 to $95 depending on the moving date.