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Sea level rise is becoming a major concern to countries like Maldives, which have an average ground elevation of 1.5 m (4.9 feet)

How do we measure elevation?

An altimeter is a device that measures altitude—a location's distance above sea level. Most altimeters are barometric, meaning they measure altitude by calculating the location's air pressure. Air pressure decreases as altitude increases.

What is ground level?

The term 'ground level', or 'ground floor', is used to refer to the level of a building that is at ground / street level. The term 'storey' tends to refer to all levels of a building above the ground level. It can also refer to the level of ground that has not be built on

Learn more about elevation:

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