They are a teaching aid for showing students how the various planets revolve and rotate. With an Earth/Moon/Sun system model you can answer all these questions by just turning the handle.. 1  Why we have day and night. 2  What a year is. 3  What a lunar month is.  Why there is summer and winter.
Currency. Romania's currency is the leu (usually appears in the plural form lei). It comes in Polymer notes. The currency has changed to RON (Romanian new lei). 1 (green) 5 (purple) 10 (Reddish Brown) 50 (Yellow) 100 )Blue) (200 and 500 lei notes are rarely used). The leu's subdivison is the ban (plural form bani), 1 leu = 100 bani), which comes in 1 (brass), 5 (cooper) 10 (steel) and 50 (brass) bani coins.
Romanian Leu Info. 1  The code for the Romanian Leu is RON. 2  The symbol for the Romanian Leu is lei. 3  The code for the Euro is EUR.  The symbol for the Euro is 1  â¬. The Leu is divided into 100 bani.  The Euro is divided into 100 1  cents. For 2017, one Romanian Leu has equalled average: â¬ 0.221. minimum: â¬  0.219.