The three classifications of magma are mainly identified using their silica composition. Basaltic magma has the lowest silica content of 45-55% by weight. This makes it the least viscous and least explosive. Andesitic magma has 55-65% , making it more explosive and viscous. Rhyolitic magma has 65-75% silica, and is the most viscous and catastrophic.
Regions of the earth's waters, crust and atmosphere in which organisms can exist is the Biosphere
They're both where plates meet up.
Answer:
The court ruled that a general grant of one-mile extraterritorial jurisdiction in the city's as of 1927. As the post–World War II development boom took off, a good deal of the land was taken over. Authority decided to adopt zoning ordinances in the one-mile area surrounding the city. Boundaries typically follow property lines but are not required to do so.