| 21. | We know Earth was not a snowball most of its history,
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| 22. | That whole second set it just seemed to snowball on me.
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| 23. | Comets are globs of ice and dirt similar to dirty snowballs.
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| 24. | But complications tend to snowball, and in droves they came,
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| 25. | Good things have happened, and the snowball is going downhill.
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| 26. | Maybe we can go like a snowball or a steamroll ."
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| 27. | There were thousands of other people at the stadium throwing snowballs.
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| 28. | Around midday, students pelted friends and passing cars with snowballs.
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| 29. | Surprisingly, this idea of returning pieces has started to snowball.
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| 30. | That snowball effect can, of course, go both ways.
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