LIST 2 ADVANTAGES FOR ORGANISMS TO REPRODUCE THEMSELVES THROUGH SPORES.
You may refer to the answer provided by your friends although I would like to add a point in first advantage- Spores can be easily dispersed to various places by wind. At new place, conditions can be favorable or unfavorable. If there are unfavorable conditions, they create a thick protective wall around themselves.
@Srushti & Madhu:- Good answer, keep contributing!!