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The answer is true.
If the water wasn't clean most would be sick.
The deformation of sedimentary strata in the American West during the Jurassic Period was caused by the Farallon plate subducting beneath the North American plate.
<h3>What purpose served the Farallon plate?</h3>
About 100 million years ago, the Farallon oceanic plate was placed between the diverging Pacific & North American plates, which later united to form the San Andreas fault. The Farallon was subducted beneath North America and then plunged deep into the mantle when those plates clashed, causing a significant component of the structure to disappear.
<h3>When did the Farallon plate go under the ocean?</h3>
50 million years ago, at the start of the series, the Farallon plate started to press against the North American continent, sinking beneath it and forming mountain ranges like the Rocky Mountains. The Farallon plate was subducting as a single unit along the entire length of North America, from Alaska down past Mexico.
Learn more about Farallon oceanic plate: brainly.com/question/15412964
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Answer:
B. erupt underwater and thus cool very quickly
Explanation:
- The pillow basalts attain their distinctive shapes and are a blob type due to the their shapes of the parent lava formations that don't travel and not far before they solidify thus they are formed due to the underwater and erupt very quickly and thereby attain a distinctive shape. Being igneous in nature they have rapid cooling and look like pillows.