how are island arcs created
hot spots in the earths core cause intense heating of the crust. This heating causes magma to rise and break the sea floor. a volcano is formed. Over time, due to tectonic plate movement (wegener) the crust moves over the hot spot and consequently heats and forms a new volcano. The old volcano is now dormant and disused. E.G island arc in hawaiii... bikini is nearly under water +diagram... (four volcanoes, each of diminishing size)
RH
Related Geography A Level answers
All answers ▸Discuss different forms of coastal management
Explain why certain natural disasters prove to be extremely costly in terms of economic damages.
How can I best answer a question such as 'what factors most affect the supply of and demand for energy on a national scale?'
Analyse the causes of poverty and evaluate its global pattern. (40 marks)