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    what causes the little black circles on the concreat? its not bubble gum!

    everywhaere in the world, there are those black circles, drips on any concreat...how did they get there?

    0  Views: 323 Answers: 1 Posted: 10 years ago
    country bumpkin

    Moderator
    bird droppings!

    1 Answer

    A dog walked over it when it was wet.


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