Ultraviolet (UV) radiation is similar to visible light in all physical aspects, except that it does not enable us to see things. The light that enables us to see things is referred to as visible light and is composed of the colors we see in a rainbow.
Playing Regulations. A game of basketball is made up of four quarters, each ten (or in the National Basketball Association 12,) minutes long. At the start of every game the referee throws the basketball up in the air, and one player from each team tries to hit it to their teammates, that is called a jump ball..
in international games four quaters of 10 minutes each in the nba four quaters of 12 minute s each are played college games differ in that two halves consisting of 20 minutes are played in most high school games four quaters are played eight minutes each college basketball lasts 40 minutes and consists of two halves there is a fifteen minute halftime for an nba game the length of the game is 48 minutes there are four quarters of 12 minutes and a fifteen minute halftimer