1) a classmate states that igneous rock must always become sedimentary rock next, according to the rock cycle. explain why this statement is incorrect.

2)why would granite have larger crystals than igneous rock s formed when lava cooled above the earth's surface?

Please people i really need help with this question this assignment is due first thing in the morning and i still have a ton of other homewrok to do!!

Its not correct because it's not that rock

It's incorrect because Igneous rock and Sedimentary rock are two different rocks that can't be compared to. there's the answer.! :D

I agree with Amna

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1) The statement that igneous rock must always become sedimentary rock next, according to the rock cycle, is incorrect because it ignores the possibility of other pathways in the cycle. The rock cycle is a continuous process in which rocks can undergo various transformations over long periods of time. While it is true that igneous rocks can weather and erode over time, leading to the formation of sediment, this does not mean that all igneous rocks will necessarily become sedimentary rocks. Igneous rocks can also undergo other processes, such as being uplifted and exposed to the surface, which can lead to their transformation into either sedimentary or metamorphic rocks. Additionally, sedimentary rocks can also be transformed into igneous rocks through processes like melting and solidification. Therefore, the rock cycle involves a complex interplay between three main types of rocks (igneous, sedimentary, and metamorphic), and it does not follow a predetermined linear sequence from igneous to sedimentary.

2) Granite typically has larger crystals compared to igneous rocks formed when lava cools above the Earth's surface because of the difference in cooling rates. Granite is an intrusive igneous rock, meaning it forms when molten magma cools slowly beneath the Earth's surface. The slower cooling allows more time for the individual mineral crystals within the magma to grow and develop, resulting in larger crystals.

On the other hand, igneous rocks formed when lava cools above the Earth's surface, known as extrusive igneous rocks, have much faster cooling rates due to exposure to the air or water. The rapid cooling prevents the minerals from having enough time to grow into large crystals. Instead, the lava solidifies quickly, resulting in a fine-grained or glassy texture with smaller crystal size.

So, the cooling rate during the formation of igneous rocks plays a crucial role in determining the size of the crystals. Longer cooling periods allow for larger crystals to form, while faster cooling leads to smaller crystals or even a glassy texture.