Effects of volcanoes and earthquakes

Question	Answer
how are volcanoes formed at a constructive boundary?	The oceanic plate is denser, and moved underneath a continental plate. Friction causes the melting of the plate, and may cause Earthquakes. Magma rises through cracks and erupts onto the surface.
How are volcanoes formed at a destructive boundary?	As the plates move apart, magma wells up to fill the gap, causing a volcano. Eventually, a new crust is formed when the magma cools.
What are some reasons why people live near hazardous areas?	- Economic reasons: brings tourism, fishing industry, energy extraction e.g. geothermal energy near volcanoes, valuable elements such as gold, silver, tin. copper. Granite is formed. physical: beautiful view, fertile soil, good climate social:
Primary effects of volcanoes and earthquakes	buildings and roads are destroyed. people and/or animals are injured or killed. crops are damaged water is contaminated (volcano) people and plants are suffocated by C02. (volcano)
Describe the secondary effects.	mudflows fires unemployment homelessness shortage of food shortage of water people may suffer from psychological damage.
What are the three p's?	Image: Jdd (image/jpeg)

Resource summary

	Created by Aaishah Din over 7 years ago