Erg (landform) when liquid methane rained and eroded the ice bedrock, possibly in the form of flash floods. Alternatively, the sand could also have come from organic solids produced by photochemical reactions in Titan's atmosphere. Erg (landform) An erg (also sand sea or dune sea, or sand sheet if it lacks dunes) is a broad, flat area of desert covered with wind-swept sand with little or no vegetative cover. The term takes its name from the Arabic word "ʿarq" (), meaning "dune field". Strictly speaking, an erg is defined as a desert area that contains more than of aeolian or wind-blown sand
Varieties of Arabic French in Lebanon, and English and Hebrew in Israel. However, a much more significant factor for all five dialect groups is, as Latin among Romance languages, retention (or change of meaning) of the form of Classical Arabic used in the Quran. The following example illustrates similarities and differences between the literary, standardized varieties, and major urban dialects of Arabic. Maltese, a distantly related Siculo-Arabic language descended from Maghrebi Arabic is also provided. "True pronunciations differ; transliterations used approach an approximate demonstration. Also, the pronunciation of Modern Standard Arabic differs significantly from region to region." For the sake of comparison, consider