What is common between liquids and gases. Gases are similar to liquids in that they flow; hence, both are called fluids. The primary different between gases and liquids is the distance between molecules. In liquids, the molecules are close together, where they c ontinually experience forces from surrounding molecules.
Injera is usually made from the tiny, iron-rich teff. However, teff production is limited to certain middle elevations and regions with adequate rainfall, so it is relatively expensive for the average household.
In Ethiopia, teff is ground into a flour and fermented to make injera, a spongy, sourdough flatbread that is soft, porous and thin like a pancake. Traditional Ethiopian restaurants serve injera with all meals as an edible serving plate topped with meats, vegetables and sauces.