Rocks

What is lithification?

• A. The process of rocks melting into magma

• B. The process that transforms sediments into cemented rocks

• C. The process of volcanic eruption

• D. The process of rock weathering

Which characteristic is unique to sedimentary rocks?

• A. They are always non-porous

• B. They are formed from magma

• C. They contain layers of compacted sediments

• D. They are formed under extreme heat

What are fossils in sedimentary rocks?

• A. Crystal formations

• B. Traces and remains of ancient living organisms

• C. Mineral deposits

• D. Gas bubbles trapped in rock

How are metamorphic rocks formed?

• A. Through volcanic eruption

• B. Through sedimentation and compaction

• C. Through pressure and heat without reaching melting point

• D. Through cooling of lava

What happens when magma reaches the Earth's surface?

• A. It immediately turns into metamorphic rock

• B. It becomes sedimentary rock

• C. It becomes lava

• 
  D. It turns into marble

Which rock is an example of a metamorphic rock?

• A. Limestone

• B. Sandstone

• 
  C. Quartzite

• D. Claystone

What is magma?

• A. Solid rock material inside Earth

• B. Molten rock material that has reached the surface

• C. Compressed sediments

• D. Hot molten material formed by melting minerals inside Earth

How do igneous rocks form?

• A. Through the solidification of lava or magma

• B. Through the compaction of sediments

• C. Through the transformation of existing rocks

• D. Through fossil preservation

What happens during the lithification of sedimentary rocks?

• A. The rocks melt completely

• B. The sediments become less compact

• C. The particles become cemented together

• D. The rocks turn into magma

Which rock type is known for being porous?

• A. Metamorphic rocks

• B. Igneous rocks

• C. Sedimentary rocks

• D. Volcanic rocks