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Index
Crossword
Complete the crossword, then click on "Check" to check your answer. If you are stuck, you can click on "Hint" to get a free letter. Click on a number in the grid to see the clue or clues for that number.
1
2
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5
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7
8
9
10
Check
Across:
1.
air
5.
the ocean
7.
the third most abundant element in the universe
9.
trash
10.
equilibrium
Down:
2.
the sea
3.
contamination
4.
the ability to do work or to cause change.
6.
liquid waste discharged by domestic residences
8.
material used for bags
OK
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Index