There are three types of magma: basaltic, andesitic and rhyolitic magma. Basaltic magma have a characteristic runny liquid magma which contains low silica content. Andesitic magma is the intermediate one in terms of silica content and viscosity. The rhyolitic magma is the thick, high silica content magma.
<span>It is too dangerous to drill in the area.</span>
Ecology, geology, astronomy , oceanology, meteorology <span />
This is True. They eat plants, tamper with soil, and other things, which may all contribute to erosion at a certain point in time.