Difference between desertification and salinization?

Preventing the process of desertilmcation by secondary salinization. degradation leading to land desertification. The salt accumulation may leadto a partial or complete loss of the soil capacity to provide the required amounts of water to plants, changing fertile lands to "deserts".

Answerseafloor spreading;

Asmall closed hole formed in an outwash plain or moraine. forms when a  glacier retreats then remains stationary.