because giant and supergiant stage is very short
giant
Because quite simply, its colour is red and compared to other stars it is a giant. See related question.
When compared to the other stars, the Red Giant Star are very minute. There are other stars that are very large by far as compared to the Red giant stars.
The blue giant is blue because of the temperature of the gases surrounding the star. These stars are extremely hot.
Giant Dwarves are old stars.
Because they begin to run out of fuel
the super giant stars are red
All Stars will become a red giant , and there are also new Stars are borning.
An average giant galaxy contains a trillion or more stars.
There are many giant stars. Some of the most well known are:AlcyoneThubanOctantisAurigaeCapellaArcturusMira
Because there not that hot
Because they are closer or actually brighter.