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Due to its rotation, Earth is slightly flattened at the poles and bulges at the _____________.
Standard Time Zone
A belt, 15 degrees wide in longitude, in which all places have the same time is _____________________.
Sometimes, at Full Moon, the Moon passes through Earth's shadow causing a ______________________.
Sometimes Earth passes through the Moon's shadow, causing a _________________________.
the bending of waves as they go from one substance to another is _____________________.
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