The term digit is often used to represent a number in a specific position in a larger number, or in a number with a fraction expressed using a radix point.
The precipitation of the Andes Mountain climate changes but not drastically between two places. In Colombia there is a lot of rainfall all year round. In Ecuador there is the desert climate without much rainfall. Peru is simalar to Ecuador.
The Andes Mountain Chain is formed as a result of a convergent plate boundary, the collision of the South American Plate with the Nazca Plate.