The answer is feet and meters above or below sea level.
The average elevation of the Florida Keys is about 6 feet above sea level, with Key Largo being the northernmost and highest point at 15 feet above sea level.
The difference between a key and an island is a Key does not have a fresh water source. Also the weather will affect a Key. A hurricane can completely wipe out a key or a large tide can bring in sand and debris, making the Key larger. Also generally speaking, Keys are smaller than islands. Some Keys you can drive to (The Florida Keys) and some Keys you have to take a ferry boat to (Egmont Key in Florida).
The Overseas Highway cross many of the Florida Keys. Among these keys are East Rockland Key, Big Coppitt Key, Saddlebunch Keys, and Sugarloaf Key.
The islands off the southern tip of Florida are called the Florida Keys.
Map keys are symbols used in maps to represent different features or elements, while legends provide explanations or interpretations of these symbols. Map keys help users understand the map's content by indicating what each symbol represents, while legends provide additional context or information about the features depicted on the map.
The two elevation keys that are used on some maps using two measurements are kilometers [km] and miles [m]
scales
feet and inches
inches and centimeters
feet, and meters
feet and meters
the answer is feet or meters above sea level
Feet and Meters.
Miles (mi) Kilometres (km)
There are several techniques for playing the black keys on the piano, including using the fingers to press down on the keys, using the thumb to play the lower black keys, and using the wrist to navigate between black keys while playing.
House keys can be customized using keyrings or key covers. There are countless keyring designs available and some can even be personalized with a family photograph.
Elevations, or altitudes, irrespective of longitude and latitude, use spot heights for individual points like summits, and contour-lines to trace levels across the landscape at particular elevations. The heights may be in feet or (more universally now) metres.