What is the definition of hydroelectric power? A. A region drained by a river system
B. Night based
C. Electric power produced by a water source such as a river
D. Tropical grasslands

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.