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notsponge [240]
4 years ago
7

How are volcanoes formed?

Chemistry
2 answers:
Mnenie [13.5K]4 years ago
6 0
Volcanoes are for when magma form within the earths upper mantle

hopes this helps
statuscvo [17]4 years ago
3 0
When magma is formed from within the earths upper mantle it works it way up to the top. when the volcanoes erupts the lava builds the volcanoes bigger and bigger. 
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