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The answer is Ash.

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βˆ™ 7y ago
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βˆ™ 7mo ago

Stratovolcanoes primarily consist of layers of solidified lava and tephra, which is a powdery substance consisting of ash, volcanic rock fragments, and pumice. These alternating layers of lava and tephra form the characteristic composite cone shape of stratovolcanoes due to their explosive eruptions.

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Q: Stratovolcano primarily consists of layers of lava and what powdery substance?
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