Flashcards
Effects of volcanoes and earthquakes
Cards in this deck (6)
- 1how 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.
- 2How 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.
- 3What 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: - 4Primary effects of volcanoes and earthquakesbuildings 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) - 5Describe the secondary effects.mudflows
fires
unemployment
homelessness
shortage of food
shortage of water
people may suffer from psychological damage. - 6What are the three p's?
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- Higher School Certificate Geography Flashcards on Effects of volcanoes and earthquakes, created by Aaishah Din on 05/07/2017.
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- Aaishah Din
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