A year without summer. How is it related to plate tectonic and plate boundary?

Sagot :

e year without a summer in 1816 was caused by a volcanic eruption on the island of Tambora the year before (In Indonesia) 

It was caused by the Indo-Australian Plate subducting beneath the Sunda Plate. The rock form the Indo-Australian plate sank into the mantle where it melted. It then rose to the surface where it created a powerful volcanic eruption, powerful enough to cool global climates for the following year
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