How is a Bank Invest

My mother when I was small used to invest, she had like my father a current count, because by there that htey receive from their jobs, so was an account that was dripping money, and her bank worked with invest like this, had the long period invest, medium period invest and short period invest, and also have by the type, have also one that haven't today the overnight, one that was higher risk but, the person would receive in the other day, I think that one probably was in International transation or in interprises that work with importation, so the short, medium and long period investiment is 3-6 months, 2 years even have ones that is 10 years, 10 years is like double or 50% of the invest but you be without your money for 10 years? So sometimes you need the money and got back is suffer because what you gonna receive? But think after passed the 3 months of investiment, yuor money gonna return for the Current count, will not being in the wallet earning money, so if you don't invest again the money only gonna making debts, and if your currnet count isn't where you receive your money, you could forgot and don't went after yuor money, and in the end, have to pay instead of receive. Rute Bezerra de Menezes Gondim