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A boat collapses when the engine is not functioning well.
Justin Bieber has a inground pool
When a volcano collapses on itself a caldera is then formed.
When rock above a cave collapses, a sinkhole is formed.
How big is the star dust inground swimming pool.
pulsar star and if it collapses even more a Black hole.
inground
The collapses star gets squeezed by collapses gas and turns into a black hole.
When a volcano collapses a very wide crater is called a caldera.
You certainly can.
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