Explain a bubble sort. You may use pseudocode and/or diagrams to help demonstrate your answer.

A bubble sort works by performing a number of passes on a list of data. With each pass the list will get closer to the final order. During a pass the algorithm compares a selected item with each item in the list. They are swapped if they are out of position. If sorting a numerical list in ascending order the number 1 would 'bubble' to the top of the list.
var length = list.lengthfor var i loop from 0 to length of list -1for var j loop from 0 to length of list -1 - iif(list(j) > list(j+1)) thenvar temporary = list(j)list(j) = list(j+1)list(j+1) = temporaryend ifnext jnext i