The british pound, the yen, and the euro are examples of?

Currency

Explanation:

Yen is Japanese currency. Euros are used in Germany, France, Italy, Portugal, Greece, Netherlands, Austria, Belgium, and 28 other countries. British pounds are used in United Kingdom, England, Scotland, Wales, and 8 other countries.

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.