Question

reading comprehension quiz

1. states that earths crust is divided into several large pieces of land called tectonic plates and these plates move over the mantle.

a. law of conservation of energy
b. theory of plate tectonics
c. theory of relativity

1. form when tectonic plates are moving away from each other.

a. divergent boundaries
b. convergent boundaries
c. transform boundaries

1. large pieces of land that float on top of the mantle are called...

a. tectonic plates
b. continental drift
c. continents

1. form when tectonic plates move towards each other.

a. divergent boundaries
b. convergent boundaries
c. transform boundaries

1. true/false: the decay of radioactive elements produces heat that radiates from the crust towards the core.
2. form when tectonic plates slide past each other.

a. divergent boundaries
b. convergent boundaries
c. transform boundaries

1. in, the core heats up the bottom of the mantle causing the warmer, less dense rock particles near the core to slowly move upwards.

a. mantle radiation
b. mantle conduction
c. mantle convection

1. are areas on earth where tectonic plates are being pulled into the mantle.

a. convection currents
b. dead zones
c. subduction zones

1. the solid layer of crust moves energy from the mantle to the surface of the earth through because the particles are so densely packed. they can transfer energy through direct.
2. true/false: tectonic plates move because convection currents in the mantle act as a conveyor belt that carries tectonic plates along with it as mantle particles move through the convection cycle.

Explanation:

• Question 5: The Theory of Plate Tectonics describes Earth's crust as divided into tectonic plates that move over the mantle.
• Question 6: Divergent Boundaries form when tectonic plates move apart.
• Question 7: Tectonic Plates are the large land pieces floating on the mantle.
• Question 8: Convergent Boundaries form when plates move towards each other.
• Question 9: The decay of radioactive elements produces heat that radiates from the core towards the crust, so the statement is False.
• Question 10: Transform Boundaries form when plates slide past each other.
• Question 11: Mantle Convection occurs when the core heats the mantle bottom, making warmer, less - dense rocks move up.
• Question 12: Subduction Zones are areas where tectonic plates are pulled into the mantle.
• Question 13: The solid crust layer transfers energy from the mantle to the Earth's surface through conduction (since particles are densely packed for direct energy transfer).
• Question 14: Tectonic plates move because mantle convection currents act as a conveyor belt, so the statement is True.

Answer:

1. b. Theory of Plate Tectonics
2. a. Divergent Boundaries
3. a. Tectonic Plates
4. b. Convergent Boundaries
5. False
6. c. Transform Boundaries
7. c. Mantle Convection
8. c. Subduction Zones
9. conduction
10. True