1. What is the primary source of information about the rocks of the Earth’s surface?
(a). Meteorite
(b). Volcano
(c). Gravity
(d). Seismic activities
2. What serves as an accessible gateway to understand the materials present up to a certain depth in the Earth’s interior?
(a). Gravity
(b). Seismic activities
(c). Overview of Surface Rocks
(d). Magnetic Field
3. What is the radius of the Earth?
(a). 5,000 km
(b). 6,370 km
(c). 7,000 km
(d). 8,000 km
4. What is the primary structure of oceanic crust?
(a). Granite
(b). Sial
(c). Basalt
(d). Peridotite rocks
5. What is the primary structure of the continental crust?
(a). Peridotite rocks
(b). Sial and granite
(c). Basalt
(d). Olivine
6. Which layer of the Earth’s interior is the main source of magma eruption?
(a). Mesosphere
(b). Asthenosphere
(c). Inner core
(d). Outer layer
7. What is the primary structure of the mantle?
(a). Basalt
(b). Granite
(c). Olivine
(d). Sial
8. Which layer of the Earth’s interior is believed to control the Earth’s magnetic field?
(a). Outer layer
(b). Inner core
(c). Asthenosphere
(d). Mesosphere
9. Which discontinuity marks the boundary between the upper mantle and lower crust?
(a). Conrad discontinuity
(b). Mohorovicic (Moho) discontinuity
(c). Repetti discontinuity
(d). Lehman discontinuity
10. What are seismic waves to understand?
(a). Surface rocks
(b). Magnetic Field
(c). Earth’s internal structure
(d). Gravity anomalies
11. What is the temperature range of the inner core?
(a). 1000°C – 2000°C
(b). 2000°C – 3000°C
(c). 3000°C – 4000°C
(d). 4000°C – 5000°C
12. What is the primary source of information about the distribution of mass in the Earth’s crust?
(a). Seismic activities
(b). Gravity
(c). Volcano
(d). Magnetic Field
13. Which layer of the Earth’s interior is twice as thick as the inner core?
(a). Outer layer
(b). Asthenosphere
(c). Mesosphere
(d). Inner core
14. What is the primary structure of the continental crust?
(a). Basalt
(b). Granite
(c). Olivine
(d). Peridotite rocks
15. Which layer is divided into outer and inner core?
(a). Cover up
(b). Crust
(c). Asthenosphere
(d). Mesosphere
16. Which discontinuity indicates the transition between the lower mantle and the outer core?
(a). Conrad discontinuity
(b). Repetti discontinuity
(c). Lehman discontinuity
(d). Weichert–Gutenberg discontinuity
17. Which phenomenon provides valuable insight into the complex layers beneath the Earth’s surface?
(a). Seismic activities
(b). Mining and Drilling
(c). Magnetic Field
(d). Meteorite
18. What serves as a direct snapshot of materials originating from significant depths within the Earth?
(a). Gravity anomalies
(b). Surface rocks
(c). Volcanic eruption
(d). Meteorite
19. What is the thickness of the earth’s crust?
(a). 50 km
(b). 100 km
(c). 150 km
(d). 200 km
20. What is the primary structure of oceanic crust?
(a). Granite
(b). Sial
(c). Basalt
(d). Peridotite rocks
21. Which is the outermost layer of the Earth’s interior?
(a). Cover up
(b). Main
(c). Crust
(d). Asthenosphere
22. What does Earth’s magnetic field provide information about?
(a). Temperature
(b). Material density
(c). Magnetic material delivery
(d). Seismic waves
23. What is the primary composition of asthenosphere?
(a). Olivine
(b). Peridotite rocks
(c). Magma
(d). Sial
24. Which layer is considered liquid and is believed to control the Earth’s magnetic field?
(a). Outer layer
(b). Inner core
(c). Asthenosphere
(d). Mesosphere
25. Which phenomenon produces seismic waves fundamental to understanding the complex structure of the Earth?
(a). Volcanic eruption
(b). Mining operations
(c). Meteorite
(d). Seismic activities