Length of a $1 Bill A) Kilometer

B) Centimeter

C) Millimeter

D) Meter

For example, the length of a dollar bill is 6.14 inches and its width is 2.61 inches. In metric units its length is approximately 16 cm and its width approximately 7 cm

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:

"record the time to complete a chemical reaction" would most likely be part of a lab procedure.