Class 8 Courses

Chapter 18: Earth Science Exam Tests

Earth Science MCQs - Chapter 18

Rocks and Minerals Mixtures Quiz Questions & Answers PDF Download - 7

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The Quiz: The skeletons of coral are made up of; "Rocks and Minerals Mixtures" App (iOS, Android) with answers: Calcium Carbonate (CaCO3); Sodium Carbonate (Na2CO3); Potassium Carbonate (K2CO3); Zinc Carbonate (ZnCO3); to learn high school online courses. Study Sedimentary Rock Composition MCQ Questions, download Amazon eBook (Free Sample) for taking online classes.

Rocks and Minerals Mixtures Exam Questions and Answers PDF Download: Test 7

MCQ 31:

The skeletons of coral are made up of

  1. Sodium Carbonate (Na2CO3)
  2. Calcium Carbonate (CaCO3)
  3. Potassium Carbonate (K2CO3)
  4. Zinc Carbonate (ZnCO3)
MCQ 32:

When exposed to heat, the clay minerals turn into

  1. lite minerals
  2. nite minerals
  3. mica minerals
  4. biotite minerals
MCQ 33:

The skeletons of corals settle on the ocean bed, after which they get cemented to form

  1. clastic limestone
  2. chemical limestone
  3. inorganic limestone
  4. fossiliferous limestone
MCQ 34:

Extrusive Igneous Rocks contain

  1. small crystals
  2. no crystals
  3. large crystals
  4. small or no crystals
MCQ 35:

The process by which sediment is removed by its source is known as

  1. evaporation
  2. logging
  3. salivation
  4. erosion

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Rocks and Minerals Mixtures App (Android & iOS)

Rocks and Minerals Mixtures App (Android & iOS)

Earth Science App (Android & iOS)

Earth Science App (iOS & Android)

6th Grade Science App (Android & iOS)

6th Grade Science App (Android & iOS)

7th Grade Science App (Android & iOS)

7th Grade Science App (iOS & Android)