MAGMATISM AND EARTH'S INTERNAL HEAT FOR EALS-Summative Test

1. What process occurs if there are formation and movement of magma under the earth’s crust?

• A. decompression melting

• B. partial melting

• C. heat transfer

• D. flux melting

2. What are the two most abundant elements in magma?

• A. oxygen and iron

• B. oxygen and magnesium

• C. silicon and aluminum

• D. silicon and oxygen

3. Conduction in mantle happens when heat is transferred from hotter molten rocks to the Earth’s cold crust. What process is being described?

• A. flux melting

• B. heat transfer

• C. partial melting

• D. decompression melting

4. When water or carbon dioxide is added to hot rocks, the melting points of minerals within the rocks decrease. What process is being described?

• A. flux melting

• B. heat transfer

• C. partial melting

• D. decompression melting

5. During partial melting of magma, where does heat transfer take place?

• A. convergent boundary

• B. mid-ocean ridge

• C. subduction zone

• D. all of the above

7. .During partial melting of magma, where does decompression melting take place?

• A. convergent boundary

• B. mid-ocean ridge

• C. subduction zone

• D. all of the above

8. During partial melting of magma, where does flux melting take place?

• A. convergent boundary

• B. mid-ocean ridge

• C. subduction zone

• D. all of the above

9. What term should be used to describe a semi-liquid hot molten rock located beneath the Earth?

• A. lava

• B. magma

• C. rocks

• D. sand

10. In what part of the earth does magmatism happen?

• A. Asthenosphere

• B. Earth’s crust

• C. Earth’s core

• D. Lithosphere

11. This refers to the heat left over from the formation of the Earth?

• A. heat from the sun

• B. primordial heat

• C. radiogenic heat

• D. superheating