Which statement BEST describes the strength of ionic and covalent bonds

Ionic bonds are the strongest type of chemical bond and, therefore, most compounds remain solid with very high melting points

in cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. a contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

explanation: