Earth structure
  • 1. What is the thickest layer of the Earth?
A) Mantle
B) Inner core
C) Crust
D) Outer core
  • 2. Which layer of the Earth is liquid iron and nickel?
A) Mantle
B) Inner core
C) Crust
D) Outer core
  • 3. The layer beneath the lithosphere is called the:
A) Inner core
B) Asthenosphere
C) Mantle
D) Outer core
  • 4. The Earth's mantle is mainly composed of which mineral group?
A) Silicates
B) Carbonates
C) Oxides
D) Sulfides
  • 5. Where is the Mohorovičić discontinuity located?
A) Between the crust and mantle
B) Within the inner core
C) Between the outer core and inner core
D) Between the mantle and outer core
  • 6. The crust and upper part of the mantle together form the:
A) Mesosphere
B) Thermosphere
C) Lithosphere
D) Asthenosphere
  • 7. What is the boundary between the Earth's crust and mantle characterized by differences in seismic wave velocities?
A) Gutenberg discontinuity
B) Mantle transition
C) Mohorovičić discontinuity
D) Outer core boundary
  • 8. Which type of boundary is formed when two tectonic plates move away from each other?
A) Transform boundary
B) Divergent boundary
C) Subduction boundary
D) Convergent boundary
  • 9. The core of the Earth is primarily made of:
A) Carbon and sulfur
B) Iron and nickel
C) Silicon and oxygen
D) Aluminum and magnesium
  • 10. What is the Earth's thinnest layer?
A) Outer core
B) Mantle
C) Crust
D) Inner core
  • 11. What is the name of the process by which heat is transferred from the Earth's core to the surface?
A) Convection
B) Subduction
C) Radiation
D) Conduction
  • 12. What is the scientific theory that explains the movement of Earth's lithospheric plates?
A) Plate tectonics
B) Seafloor spreading
C) Continental drift
D) Earthquake theory
  • 13. The presence of what mineral gives the Earth's mantle its greenish color?
A) Quartz
B) Hematite
C) Olivine
D) Feldspar
  • 14. What is the state of matter in the Earth's outer core?
A) Liquid
B) Solid
C) Plasma
D) Gas
  • 15. What type of rock is the Earth's mantle mostly composed of?
A) Basalt
B) Sandstone
C) Granite
D) Peridotite
  • 16. The Earth's lithosphere is broken into pieces known as:
A) Volcanoes
B) Continents
C) Mountain ranges
D) Tectonic plates
  • 17. What occurs when tectonic plates collide, causing one plate to be forced below the other?
A) Sliding
B) Subduction
C) Rift
D) Spreading
Created with That Quiz — the site for test creation and grading in math and other subjects.