Answer:
By measuring the quantity of unstable atoms left in a fossil and comparing it to the quantity of stable daughter atoms in the fossil , scientists can estimate the amount of time that has passed since that fossil formed.
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The answer is that they arrived in Mesoamerica in the 13th century
Whether an eruption will produce lava flows or pyroclastic debris depends on the viscosity of magma and the gas content
<h3>What is a Volcano?</h3>
This refers to the eruption of hot lava from the surface of the earth as a result of a tectonic shift.
Hence, we can see that the two main factors that determine the content that comes out when an eruption occurs are both the viscosity of the magma and also the gas content.
Read more about volcanoes here:
brainly.com/question/440765
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