A metal form two oxides containing 20% and 11.1% of oxygen respectively. Show that these figures agreee with the law of multiple proportion (O=16)

beta decay is the answer

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:

im doing test rn im going with 2 but ill give answer if itss wrong,   : )