4. Unemployment that is directly related to swings in the business cycle is A frictional unemployment.
B. structural unemployment.
C. cyclical unemployment.
D. seasonal unemployment.

the invasive species was introduced due to commercial purpouses, as there was a demand for fur clothes and hence, a business opportunity connected to this product. actually, it was when the nutrias scaped, causing harm to the us ecosystems when they acquired the status of invasive species. in this case they have caused an environmental problem, but it could have affected also economic interests or even human health.

mammals. mammals of the piedmont region live in several habitats such as wetlands, fields and forests. raccoons live across the state including the piedmont. they've adapted to environmental changes, including the loss of natural habitat.

answer; ha,ha,ha, corn on the cop;