Some volcanic eruptions are explosive and others are not. The explosivity of an eruption depends on the composition of magma. If the magma is thin and runny, gases can escape easily from it. In this type of eruption, the magma blasts into the air and breaks apart into pieces called tephra.
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Answer:
Letter A (Tephra)
Explanation:
Some volcanic eruptions are explosive and others are not. The explosivity of an eruption depends on the composition of magma. If the magma is thin and runny, gases can escape easily from it. In this type of eruption, the magma blasts into the air and breaks apart into pieces called tephra.
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