1) A volcano is a mountain on the earth’s surface extend down to a pool of magma known as magma chamber locate between the crust and mantle a) true b) false 2) Shield volcanic are explosive eruption a) true b) false 3) How to reduce negative impact of volcanic eruption a) Spraying cold water oncoming lava flow to slow the lava down. b) Use diversionary lava channels, so as to change lava flow direction. c) Not to built towns and houses nearby the volcano area. d) All of above

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