Confidence votes 2.6K. A composite volcano is built up from alternate layers of ash and lava. It has steep sides because when it erupts it lava is thick and viscous (andesitic) meaning that it does not travel great distances and stays on the side of the volcano. An example is Mount Vesuvius (which destroyed Pompeii).onfidence votes 2.6K. A composite volcano is built up from alternate layers of ash and lava. It has steep sides because when it erupts it lava is thick and viscous (andesitic) meaning that it does not travel great distances and stays on the side of the volcano. An example is Mount Vesuvius (which destroyed Pompeii).
Primavera (software) Primavera is an enterprise project portfolio management software. It includes project management, product management, collaboration and control capabilities and integrates with other enterprise software such as Oracle and SAPâs ERP systems. Primavera was launched in 1983 by Primavera Systems Inc. and was acquired by Oracle Corporation in 2008.
Vivera retainers are custom made for you with the same state-of-the-art technology used to make Invisalign aligners. Because the retainers are custom made from an impression or scan of your teeth, you will benefit from a precise fit and therefore more comfortable fit. Viveraâs proprietary material is 30% stronger*, which helps maintain your teeth in the desired position.