Sand can be trucked in from other sources and filtered for sediments to eventually make way into the air and water. They can also build seawalls, revetments, and jetties along the shoreline. :)
The most densely populated European nation is the Vatican, located within Rome. It has 800 citizens with them living on a 0.17 miles squared, meaning there are 4,709 citizens per mile squared. This number might seem odd since it's much greater, but as Vatican is smaller than 1 mile, it cannot be compared without it becoming so big.
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generally found between the latitudes of 45 degrees north and 65 degrees north. love your pfp btw ;)
By saying the centennial high school parking lot is five blocks down from the softball field is using a relative location using people's knowledge of a familiar landmark like the softball field as a reference to visualize where the parking lot is in space.