A seasonal worker is someone who performs labor or provides services on a seasonal basis. Seasonal referring to a specific time in which that service/labor is needed/prominent or based on the actual seasons I.e fall,summer etc.. A migrant worker is someone who moves from another country or area to find work.
Just took the test this is what it's looking for see below.
Migrant workers are people who work in countries of which they are not citizens. They can work in any field. A seasonal worker is a type of a migrant worker. Seasonal workers move from one seasonal job to another. Seasonal workers often are engaged in manual labor in the agricultural sector.
European colonialism and colonization was the policy or practice of acquiring full or partial political control over other societies and territories, founding a colony, occupying it with settlers, and exploiting it economically.
•Humans (biosphere) built a dam out of rock materials (lithosphere). Water in the lake (hydrosphere) seeps into the cliff walls behind the dam, becoming groundwater (lithosphere), or evaporating into the air (atmosphere).