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An underwater ecosystem made of calcium carbonate.

The first hint to crack the puzzle «An underwater ecosystem made of calcium carbonate.» is:

It is a word which contains 10 letters

                   

The second hint to crack the puzzle «An underwater ecosystem made of calcium carbonate.» is:

It starts with letter C

C                  

The third hint to crack the puzzle «An underwater ecosystem made of calcium carbonate.» is:

It ends with letter F

C                 f

Looking for extra hints for the puzzle «An underwater ecosystem made of calcium carbonate.»:

Click on any empty tile to reveal a letter
C   o   r   a   l     r   e   e f

The answer for the puzzle «An underwater ecosystem made of calcium carbonate.» is:

C o r a l r e e f
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Puzzle 4

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A submarine captain uses one to see the surface.

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Brit classification of small, hatchback-style cars.