Internal Heat Quiz

2. 1. Why does radioactive decay play a very important
role in earth’s internal heat?
A. Radioactive element can be found anywhere in the planet.
B. When radioactive element decays, it produces heat.
C. Spontaneous nuclear disintegration of radioactive elements
produced
thermal energy.
D. All of the above

3. 2. What is produced by the radioactive decay of
isotopes in the mantle and crust?
A. radiogenic heat
B. primordial heat
C. superheating
D. heat from the sun

4. 3. This refers to the heat left over from the
formation of the Earth?
A. radiogenic heat
B. primordial heat
C. superheating
D. heat from the sun

5. 4. Which of the following is the outermost layer of
the Earth?
A. crust
B. core
C. discontinuity
D. mantle

6. 5. Which of the following stores magma and located in
a region just beneath the crust all the way to the core?
A. crust
B. outer core
C. inner core
D. mantle

7. 6. What heat transfer of fluid in the Earth’s interior
results to the movement of rocky mantle up to the
surface?
A. convection current
B. conduction
C. insolation
D. radiation

8. 7. What kind of heat transfer occurs mostly on the
Earth’s surface?
A. conduction
B. convection
C. insolation
D. radiation

9. 8. What term should be used to describe a
semi-liquid hot molten rock located beneath
the Earth?
A. lava
B. sand
C. rocks
D. magma

10. 9. In what part of the earth does magmatism
happen?
A. Asthenosphere
B. Earth’s crust
C. Earth’s core
D. Lithosphere

11. 10. Which of the following is NOT a factor
of partial melting?
A. addition of volatiles
B. decrease in pressure
C. an increase in pressure
D. an increase in temperature