Final answer:
Seasonal unemployment is seen when construction workers can't find work due to seasonal changes like snow and ice on the ground. Cyclical, frictional, and structural unemployment can occur in different scenarios like a recession, relocation, or technological advancements that affect job availability.
Step-by-step explanation:
When construction workers seek work during periods when the ground is covered with snow and ice, and they are unable to find it, this is an example of seasonal unemployment. Seasonal unemployment happens when there are fluctuations in labor demand throughout the year, typically caused by changes in seasons. In other sectors, the following types of unemployment may occur:
Structural unemployment is a result of a mismatch between skills and available jobs, which may be due to geographic, technological, or educational discrepancies.