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Happy and safe Halloween


humble3d

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Happy and safe Halloween


Sinkholes Buried Alive


The catastrophic collapse of the ground beneath our

feet is a growing worldwide hazard...

http://www.pbs.org/video/2365411270/?
Utm_source=youtube&utm_medium=pbsofficial&utm_campaign
=nova_covefullprogram

 

 


 

https://www.youtube.com/watch?v=66t1kKm5Dk0

 

 

 

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