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.
A solar eclipse can only ever occur during the new moon phase. This is because the Moon has to pass in front of the Sun during the eclipse and so the side we see is not being illuminated by the Sun at all. Meklar Â· 6 years ago. Thumbs up.