quiz 2

Fill in the blank:  Sedimentary rocks form through: 

• Melting and cooling
• Erosion and weathering
• Compaction and cementation (deposition)

• Heat and pressure

Which of the following refers to an igneous rock with visible crystals?

• Aphanitic

• Vesicular

• Phaneritic

• None of the above.

Clastic sedimentary rocks can form from the erosion of: 

• Igneous rocks
• Metamorphic rocks
• Both igneous and metamorphic rocks
• None of the above

Which category of sedimentary rocks commonly contains fossils?

• Clastic

• Non-carbonate

• Inorganic

• Carbonate

Is a porphyritic rock intrusive or extrusive?

• Intrusive
• Extrusive
• Both
• None of the above

According to the rock cycle, sedimentary rocks form from the erosion of:

• Igneous rocks
• Metamorphic rocks
• Sedimentary rocks
• All of the above

What are the two main categories of igneous rocks?

• Sedimentary and Metamorphic
• Extrusive and Intrusive
• Foliated and Non-foliated
• Chemical and Organic

18) What kind of volcano is flatter and made of gentle slopes of hardened lava? (1 pt)

• Stratovolcano
• Cinder Cone Volcano
• Shield Volcano
• Composite Volcano