-1 points
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Oh, you’re so close. Ground Zero is nothing, no elevation above or below ground level. The literal ground you walked on, into the building. You’re on ground level (outside) and then you’re on the ground floor (inside), as opposed to the American version where you suddenly “jump” to first floor once you’re in a building.
1 point
The first floor of a building is usually on a foundation, raising it above ground level
We call the thing you stand on outside ground and inside we call them floors, “ground floor” is silly
0 points
