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Willebroek is hosting nine of the largest companies in Belgium (Belgium). | ||
| City: | Willebroek (See Map below) | |
| Country: | Belgium (Belgium) | |
| City Id: | 3286 | |
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Willebroek in Belgium (Belgium) 
Willebroek
(#)The daily puzzle:
What does '*****' mean in the following text?
"A ***** is a substance that is formed by trapping pockets of gas in a liquid or solid. A bath sponge and the head on a glass of beer are examples of *****s. In most *****s, the volume of gas is large, with thin films of liquid or solid separating the regions of gas. An important division of solid *****s is into closed-cell *****s and open-cell *****s."
The answer and more