Earth's Structure and Layers MCQ Test: Earth's Structure and Layers MCQs - Practice Questions
1. What is the term for a slow, downslope movement of soil and rock material, often influenced by factors like water and vegetation?
2. What is the term for the process by which rocks break down into smaller particles due to weathering?
3. Which type of volcano is characterized by its broad, gently sloping shape and is primarily built up by the flow of low-viscosity basaltic lava?
4. What is the term for the process of the Earth's crust sinking into the mantle due to its weight?
5. Which layer of the Earth is characterized by a rigid outer shell divided into several plates that float on the semi-fluid asthenosphere?
6. What is the boundary between two tectonic plates that are moving away from each other called?
7. Which layer of the Earth is directly beneath the Earth's crust?
8. What is the primary component of the Earth's atmosphere?
9. What is the name of the theory proposing that the Earth's lithosphere is divided into several large and rigid tectonic plates that move across the semi-fluid asthenosphere?
10. What is the Earth's crust made up of?
11. Which layer of the Earth is characterized by its semi-fluid nature?
12. What is the term for the breaking down of rocks into smaller particles due to various natural factors?
13. What is the term for a sudden and violent shaking of the ground, often caused by the movement of tectonic plates?
14. What is the term for the process by which an oceanic plate descends beneath another plate at a subduction zone?
15. Which layer of the Earth contains molten rock known as magma?
16. What is the term for the bending of light as it passes through different layers of the Earth's atmosphere, creating stunning visual effects like rainbows?
17. Which layer of the Earth is characterized by a partially molten state, allowing for the movement of tectonic plates?
18. What is the process by which one tectonic plate is forced beneath another?
19. What is the phenomenon where a tectonic plate is neither subducting nor uplifting, maintaining a constant elevation?
20. Which type of rock is formed from the accumulation and compression of sediment over time?