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How are extrusive and intrusive rocks formed |
| Answer» <html><body><p>Extrusive rocks are formed on the <a href="https://interviewquestions.tuteehub.com/tag/surface-1235573" style="font-weight:bold;" target="_blank" title="Click to know more about SURFACE">SURFACE</a> of the Earth from <a href="https://interviewquestions.tuteehub.com/tag/lava-1069695" style="font-weight:bold;" target="_blank" title="Click to know more about LAVA">LAVA</a>, which is magma that has emerged from underground. Intrusive rocks are formed from magma that <a href="https://interviewquestions.tuteehub.com/tag/cools-933584" style="font-weight:bold;" target="_blank" title="Click to know more about COOLS">COOLS</a> and solidifies within the crust of the planet. ... If lava cools <a href="https://interviewquestions.tuteehub.com/tag/almost-373246" style="font-weight:bold;" target="_blank" title="Click to know more about ALMOST">ALMOST</a> instantly, the rocks that <a href="https://interviewquestions.tuteehub.com/tag/form-996208" style="font-weight:bold;" target="_blank" title="Click to know more about FORM">FORM</a> are glassy with no individual crystals, like obsidian.</p></body></html> | |