There are three main types of volcano-composite or strato, shield and dome. Composite Volcanoes. Composite volcanoes, sometimes known as strato volcanoes, are steep sided cones formed from layers of ash and [lava] flows. The eruptions from these volcanoes may be a pyroclastic flow rather than a flow of lava.
A vagal episode or vasovagal response or vasovagal attack (also called neurocardiogenic syncope) is a malaise mediated by the vagus nerve. When it leads to fainting, also known as a syncope, it is called a vasovagal syncope, which is the most common type of fainting.
VapÂ·oÂ·riÂ·zaÂ·tion. n. The act or process of vaporizing, or the state of being converted into vapor; the artificial formation of vapor; specifically, the conversion of water into steam, as in a steam boiler. or changing states from liquid to a gas. This is different from evaporation.