Potash cash operating cost of goods sold net of by-product credits, which we define as total cost of goods sold excluding royalties, depreciation, depletion and amortization, was $199 per short ton in the first quarter of 2010 compared to $238 per short ton in the first quarter of 2009.
Answers.comÂ® is making the world better one answer at a time. It is relativley rare to observe a solar eclipse because the sun's light is blocked by the moon.
Itâs commonplace to hear that solar eclipses are rare. However, on average there are 2.4 solar eclipses every year visible somewhere on the Earth. This number includes 3 types of solar eclipse, total, annular and partial. A total solar eclipse is visible from somewhere on Earth approximately every 18 months. It is rare to witness a total solar eclipse as the total phase of the eclipse is only visible from a narrow corridor across the Earthâs surface.