Clay decides to open a sandwich shop in his neighborhood. he keeps the costs of his sandwiches low so more people can afford to buy them. but clay also knows he has bills to pay of his own- such as for his house, his car, and for clothes for his children- so he can't just give away the sandwiches he makes. this is showing what economic principle? a) profit motive b) supply and demand c) market advertising d) spending and credit

The answer to your question is A

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.

imperial crisis leads to civil war.

roman forces withdraw from britain as goths attack rome.

odoacer topples romulus augustus

huns attack the empire and drive german peoples ahead of them.