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Extrusive rocks are formed when lava cools and solidifies on the Earth's surface, resulting in very ____ grains due to fast cooling.
  • a)
    large
  • b)
    small
  • c)
    colorful
  • d)
    shiny
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Extrusive rocks are formed when lava cools and solidifies on the Earth...
When lava cools quickly on the Earth's surface, it forms extrusive rocks with very small grains. This happens because the cooling process is fast, making the rocks appear smooth.
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Extrusive rocks are formed when lava cools and solidifies on the Earth's surface, resulting in very ____ grains due to fast cooling.a)largeb)smallc)colorfuld)shinyCorrect answer is option 'B'. Can you explain this answer?
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