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lora16 [44]
3 years ago
15

How are igneous rocks formed?​

Geography
1 answer:
OverLord2011 [107]3 years ago
7 0

Explanation:

Igneous rocks form when magma (molten rock) cools and crystallizes, either at volcanoes on the surface of the Earth or while the melted rock is still inside the crust. All magma develops underground, in the lower crust or upper mantle, because of the intense heat there.

<h2>hope it helps u </h2>

<h2>pls mark me as branliest </h2>
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Answer:

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The age of the rock can be estimated by comparing the occurring radioactive isotope within the material to the abundance of its decay products, which form at a known constant rate of decay.

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