Answer:
Seasonal unemployment is due to changes in production schedules; structural unemployment is because people lack skills.
Explanation:
Seasonal unemployment refers to the type of unemployment that takes place during specific seasons of the year when demand for certain types of work is falling. This form of unemployment is quite typical in the agricultural sector, where many peasants depend on the weather to produce a certain crop.
Structural unemployment is triggered when the abilities or skill sets of the workers do not meet the needs of the employers. For example, a dramatic drop in a specific commodity's demand will result in structural unemployment because, with that commodity's demand decreasing, it would take less labor to manufacture that commodity.