The hazards from the volcanoes include lava and pyroclastics, tephra and , lahars and climate alteration. Fertile soil and geothermal energy are beneficial results of volcanic eruptions. Much of El Salvador for example is convered with volcanic ash and this has been a fertile growing medium for coffee plants.
These four, are hazards that result from the volcanic activity. They can have devastating effect on the environment, including the humans too. In a very short period of time, this hazards can changed the appearance of a whole region, the appearance and composition of the atmosphere, and have devastating effect by causing material damage, and human, animal, and plant deaths.
formal region is an area inhabited by people who have one or more characteristics in common. ... Examples of formal regions are Europe, Africa, United States, and Canada. Functional Region. A functional region is an area organized to function politically, socially, and economically as a single unit.
To study the element of geography is to study of the physical features of the Earth's surface and atmosphere, including how humans affect them, and the ways they affect humans.
