I believe the correct answer is A
Earth has layers, similar to an egg. The first layer of earth is the thinnest, like an eggshell, and it's called the crust. Next, there's the mantle. This part is like the liquid egg whites, because it's three layers (named lithosphere, asthenosphere, and mesosphere) are constantly flowing and moving. Lastly, the core, which is the yolk of an egg. Hope this helped!
The air in the Earth’s atmosphere is made up of approximately 78% nitrogen and 21% oxygen.
When molten rock flows or erupts through a crack on the earth's surface, it came from a Volcano.
<h3>What is a Volcano?</h3>
A volcano is a channel in Earth's crust through which molten rock flows. Volcanoes can develop from the subduction of a plate under another plate below the earth crust. At the boundaries where plates exist, molten magma rises in cracks between the two plates, leading to the formation of volcanoes.
Below the earth surface, molten rock is referred to as magma but as soon as it erupts above the earth's surface, it is referred to as Lava.
Therefor, according to the question, when molten rock flows or erupts through a crack on the earth's surface, it came from a volcano.
Learn more about Volcanoes at brainly.com/question/25121802
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