Igneous Rocks MCQs Test Online PDF Download

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MCQ on Igneous RocksQuiz PDF Download

MCQ: Examples of submarine volcanic activities are

  1. blue smokers
  2. black smokers
  3. white smokers
  4. yellow smokers

D

MCQ: Igneous rocks with lowest content of silica are known as

  1. mafic rocks
  2. felsic rocks
  3. porphyry
  4. ultramafic rocks

D

MCQ: Non-essential minerals present in igneous rocks are classified as

  1. intrusive minerals
  2. accessory minerals
  3. smoker minerals
  4. white minerals

B

MCQ: Intrusive igneous rocks are classified as

  1. gamma-abyssal
  2. alpha-abyssal
  3. hypabyssal
  4. abyssal

C

MCQ: Crystals of igneous rocks that are too small to be seen with naked eyes are known as

  1. phaneritic
  2. aphanitic
  3. porphyry
  4. pyroclastic

B