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GL101 Exam Review (NEW UPDATED VERSION) LATEST ACTUAL EXAM
QUESTIONS AND CORRECT ANSWERS (VERIFIED QUESTIONS AND ANSWERS) |
GUARANTEED PASS A+
GL101 Practice Questions
1. The outer layer of the Earth, which is rigid and brittle, is called:
A. Mantle
B. Lithosphere
C. Asthenosphere
D. Core
Answer: B – The lithosphere is rigid; it includes crust and upper mantle.
2. Which type of plate boundary is responsible for mid-ocean ridges?
A. Convergent
B. Divergent
C. Transform
D. Subduction
Answer: B – Divergent boundaries separate plates, forming new crust.
3. Which mineral property describes how a mineral breaks along planes of weakness?
A. Luster
B. Hardness
C. Cleavage
D. Streak
Answer: C – Cleavage is directional breaking.
4. Granite is an example of what type of rock?
A. Sedimentary
B. Igneous (intrusive)
C. Metamorphic
D. Clastic
Answer: B – Granite crystallizes slowly below the surface.
2026 2027 GRADED A+
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5. Sandstone is classified as:
A. Igneous
B. Metamorphic
C. Sedimentary
D. Volcanic
Answer: C – Formed from lithified sand grains.
6. Which process chemically alters rock by dissolving minerals?
A. Frost wedging
B. Chemical weathering
C. Abrasion
D. Erosion
Answer: B – Chemical reactions break down minerals.
7. The San Andreas Fault is an example of a:
A. Divergent boundary
B. Convergent boundary
C. Transform boundary
D. Subduction zone
Answer: C – Plates slide past each other horizontally.
8. Which type of volcano is broad with gently sloping sides?
A. Shield volcano
B. Stratovolcano
C. Cinder cone
D. Caldera
Answer: A – Formed by low-viscosity lava.
9. Radiometric dating is based on:
A. Fossil presence
B. Rock layering
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C. Isotope decay
D. Erosion rates
Answer: C – Uses decay rates of radioactive isotopes.
10. The principle of superposition states that:
A. Younger rocks are on the bottom
B. Younger rocks are on top
C. All rocks are same age
D. Rocks never change position
Answer: B – Older layers are beneath younger layers.
11. Which of the following is an example of a foliated metamorphic rock?
A. Marble
B. Slate
C. Quartzite
D. Granite
Answer: B – Slate shows aligned minerals.
12. Index fossils are useful because they:
A. Are rare
B. Indicate a specific geologic age
C. Are found everywhere
D. Form quickly
Answer: B – Helps correlate rock layers.
13. A U-shaped valley is formed by:
A. River erosion
B. Glacial erosion
C. Wind abrasion
D. Volcanic activity
Answer: B – Glaciers carve U-shaped valleys.
2026 2027 GRADED A+
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14. Which of these is a renewable resource?
A. Coal
B. Oil
C. Solar energy
D. Natural gas
Answer: C – Solar energy replenishes naturally.
15. Lava that cools quickly forms:
A. Granite
B. Basalt
C. Gneiss
D. Sandstone
Answer: B – Basalt is extrusive igneous rock.
16. Fossilization where minerals replace organic material is called:
A. Cast
B. Mold
C. Permineralization
D. Amber
Answer: C – Minerals infiltrate and replace tissues.
17. Which layer of the Earth is mostly liquid iron and nickel?
A. Inner core
B. Outer core
C. Mantle
D. Crust
Answer: B – Outer core is liquid, producing Earth’s magnetic field.
18. Abrasion is an example of:
A. Physical weathering
B. Chemical weathering
C. Erosion
D. Deposition
2026 2027 GRADED A+
GL101 Exam Review (NEW UPDATED VERSION) LATEST ACTUAL EXAM
QUESTIONS AND CORRECT ANSWERS (VERIFIED QUESTIONS AND ANSWERS) |
GUARANTEED PASS A+
GL101 Practice Questions
1. The outer layer of the Earth, which is rigid and brittle, is called:
A. Mantle
B. Lithosphere
C. Asthenosphere
D. Core
Answer: B – The lithosphere is rigid; it includes crust and upper mantle.
2. Which type of plate boundary is responsible for mid-ocean ridges?
A. Convergent
B. Divergent
C. Transform
D. Subduction
Answer: B – Divergent boundaries separate plates, forming new crust.
3. Which mineral property describes how a mineral breaks along planes of weakness?
A. Luster
B. Hardness
C. Cleavage
D. Streak
Answer: C – Cleavage is directional breaking.
4. Granite is an example of what type of rock?
A. Sedimentary
B. Igneous (intrusive)
C. Metamorphic
D. Clastic
Answer: B – Granite crystallizes slowly below the surface.
2026 2027 GRADED A+
,2|Page
5. Sandstone is classified as:
A. Igneous
B. Metamorphic
C. Sedimentary
D. Volcanic
Answer: C – Formed from lithified sand grains.
6. Which process chemically alters rock by dissolving minerals?
A. Frost wedging
B. Chemical weathering
C. Abrasion
D. Erosion
Answer: B – Chemical reactions break down minerals.
7. The San Andreas Fault is an example of a:
A. Divergent boundary
B. Convergent boundary
C. Transform boundary
D. Subduction zone
Answer: C – Plates slide past each other horizontally.
8. Which type of volcano is broad with gently sloping sides?
A. Shield volcano
B. Stratovolcano
C. Cinder cone
D. Caldera
Answer: A – Formed by low-viscosity lava.
9. Radiometric dating is based on:
A. Fossil presence
B. Rock layering
2026 2027 GRADED A+
,3|Page
C. Isotope decay
D. Erosion rates
Answer: C – Uses decay rates of radioactive isotopes.
10. The principle of superposition states that:
A. Younger rocks are on the bottom
B. Younger rocks are on top
C. All rocks are same age
D. Rocks never change position
Answer: B – Older layers are beneath younger layers.
11. Which of the following is an example of a foliated metamorphic rock?
A. Marble
B. Slate
C. Quartzite
D. Granite
Answer: B – Slate shows aligned minerals.
12. Index fossils are useful because they:
A. Are rare
B. Indicate a specific geologic age
C. Are found everywhere
D. Form quickly
Answer: B – Helps correlate rock layers.
13. A U-shaped valley is formed by:
A. River erosion
B. Glacial erosion
C. Wind abrasion
D. Volcanic activity
Answer: B – Glaciers carve U-shaped valleys.
2026 2027 GRADED A+
, 4|Page
14. Which of these is a renewable resource?
A. Coal
B. Oil
C. Solar energy
D. Natural gas
Answer: C – Solar energy replenishes naturally.
15. Lava that cools quickly forms:
A. Granite
B. Basalt
C. Gneiss
D. Sandstone
Answer: B – Basalt is extrusive igneous rock.
16. Fossilization where minerals replace organic material is called:
A. Cast
B. Mold
C. Permineralization
D. Amber
Answer: C – Minerals infiltrate and replace tissues.
17. Which layer of the Earth is mostly liquid iron and nickel?
A. Inner core
B. Outer core
C. Mantle
D. Crust
Answer: B – Outer core is liquid, producing Earth’s magnetic field.
18. Abrasion is an example of:
A. Physical weathering
B. Chemical weathering
C. Erosion
D. Deposition
2026 2027 GRADED A+
