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O Level Geography Physical Geography Quiz

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Questions

O-Level Geography Quiz - Physical Geography

Name: __________________________
Class: __________________________
Date: __________________________
Score: ______ / 45

Duration: 45 Minutes
Total Marks: 45

Instructions:

Answer all questions.
Write your answers in the spaces provided.
Marks are indicated in brackets [ ] at the end of each question or part question.
You may use a calculator.

Section A: Tectonics and Physical Processes (Questions 1-5)

1. Study Figure 1, which shows a cross-section of the Earth’s internal structure.

(Note: In a real exam, Figure 1 would show Crust, Mantle, Outer Core, Inner Core)

(a) Identify the layer labelled X in Figure 1 (the outermost layer).
[1]

(b) Describe the state of matter of the Outer Core.
[1]

2. Study Figure 2, which shows the global distribution of major earthquakes.

(a) Describe the distribution of earthquakes shown in Figure 2.
[2]

(b) Explain why earthquakes are rarely found in the center of tectonic plates.
[2]

3. Study Photograph A (Insert), which shows a coastal landform (a spit).

(a) Name the coastal landform shown in Photograph A.
[1]

(b) Explain the process of longshore drift.
[3]

4. Compare constructive and destructive plate boundaries.

(a) State the direction of plate movement at a constructive boundary.
[1]

(b) Explain one geological feature formed at a destructive boundary.
[3]

5. Study the diagram of a volcano.

(a) Identify the feature labelled Y (the main vent).
[1]

(b) Explain why some volcanoes have explosive eruptions.
[2]

Section B: Climate and Weather (Questions 6-10)

6. Study Table 1, which shows climate data for Station A and Station B.

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Station A Temp (°C)	27	27	28	28	28	27	27	27	27	27	27	27
Station A Rain (mm)	250	200	180	190	170	150	160	170	190	220	240	260
Station B Temp (°C)	10	11	13	15	18	21	24	24	22	18	14	11
Station B Rain (mm)	80	60	50	40	30	10	5	10	30	60	70	80

(a) Calculate the annual temperature range for Station B.
[2]
Working:

Answer: _______________ °C

(b) Describe the rainfall pattern of Station A.
[2]

7. Explain the enhanced greenhouse effect.

In your answer, refer to:

The role of greenhouse gases.
One human activity that contributes to this process.

[4]

8. Study Figure 3, which shows the Urban Heat Island effect.

(a) Define the term 'Urban Heat Island'.
[1]

(b) Explain why urban areas are warmer than rural areas.
[3]

9. Study the diagram of a rain gauge.

(a) State one reason why a rain gauge is placed in an open area.
[1]

(b) Explain how incorrect placement of a rain gauge affects data reliability.
[2]

10. Compare Equatorial and Desert climates.

(a) State one similarity in temperature between Equatorial and Desert climates.
[1]

(b) Explain one difference in rainfall between these two climate types.
[2]

Section C: Data Interpretation and Fieldwork Methods (Questions 11-15)

11. A group of students is investigating beach sediment size.

(a) Identify the independent variable in this investigation.
[1]

(b) Identify the dependent variable in this investigation.
[1]

12. The students used a sieve to collect data.

(a) Explain why using a sieve is more reliable than estimating by eye.
[2]

(b) Suggest one way to ensure the sampling method is unbiased.
[1]

13. Study Figure 4, a scatter graph showing wave height and beach slope.

(a) Describe the relationship shown in the graph.
[2]

(b) Explain why high-energy waves might create a steeper beach profile.
[2]

14. Evaluate the use of questionnaires in geographical fieldwork.

(a) State one advantage of using questionnaires.
[1]

(b) State one disadvantage of using questionnaires.
[1]

15. Safety in Fieldwork.

(a) Identify one potential hazard when conducting fieldwork on a rocky shore.
[1]

(b) Suggest one safety precaution to reduce this risk.
[1]

Section D: Extended Response (Questions 16-20)

16. 'The impacts of tectonic hazards are determined more by human factors than by physical factors.'

How far do you agree with this statement? Use examples to support your answer.

[9]

......

17. Discuss the causes of global climate change.

[6]

________________________________________________________________......

18. Explain the formation of a meander in a river.

[6]

________________________________________________________________......

19. Discuss the challenges of managing water supply in a named country.

[6]

________________________________________________________________......

20. Evaluate the effectiveness of hard engineering strategies in managing coastal erosion.

[6]

________________________________________________________________......

Answers

O-Level Geography Quiz - Physical Geography (Answer Key)

Total Marks: 45

Section A: Tectonics and Physical Processes (Questions 1-5)

1. Earth Structure (a) Crust [1] (b) Liquid (or molten) [1]

2. Earthquake Distribution (a)

Concentrated along plate boundaries. [1]
Specifically along the Pacific Ring of Fire. [1] (b)
Plate interiors are stable/far from boundaries. [1]
Little stress/friction accumulation to cause quakes. [1]

3. Coastal Landforms (a) Spit [1] (b)

Waves approach coast at an angle due to prevailing wind. [1]
Swash moves sediment up at angle; backwash moves down at 90 degrees. [1]
Net movement of sediment along coast (longshore drift). [1]

4. Plate Boundaries (a) Plates move apart (diverge). [1] (b)

Subduction of denser oceanic plate under lighter plate. [1]
Friction/melting creates magma which rises to form volcanoes. [1]
Example: Andes Mountains / Volcanic Arc. [1]

5. Volcanoes (a) Main Vent (or Pipe) [1] (b)

High silica content magma is viscous/thick. [1]
Gas builds up pressure and explodes when released. [1]

Section B: Climate and Weather (Questions 6-10)

6. Climate Data (a)

Working: 24 - 10 [1]
Answer: 14°C [1] (b)
High rainfall year-round. [1]
No distinct dry season / Rainfall > 150mm most months. [1]

7. Enhanced Greenhouse Effect

Greenhouse gases trap long-wave radiation from Earth. [1]
Human activities (e.g., burning fossil fuels) increase CO2 levels. [1]
More heat is trapped in the atmosphere. [1]
Leads to global warming. [1]

8. Urban Heat Island (a) Urban areas are warmer than surrounding rural areas. [1] (b)

Concrete/asphalt absorbs and stores more heat than vegetation. [1]
Lack of vegetation reduces cooling via evapotranspiration. [1]
Heat generated by human activities (cars, AC, industry). [1]

9. Rain Gauge (a) To avoid rain shadow or splash-back from obstacles (trees/buildings). [1] (b)

Obstacles block rain or cause splash-in. [1]
Data becomes inaccurate (under/over estimated). [1]

10. Climate Comparison (a) Both have high temperatures (in summer/day). [1] (b)

Equatorial has high rainfall year-round. [1]
Desert has very low rainfall / irregular rainfall. [1]

Section C: Data Interpretation and Fieldwork Methods (Questions 11-15)

11. Variables (a) Distance from the sea. [1] (b) Sediment size. [1]

12. Methods (a)

Sieves provide objective/quantitative data. [1]
Eye estimation is subjective/prone to error. [1] (b) Use systematic sampling (e.g., every 10m) or random sampling. [1]

13. Wave Height and Slope (a) Positive correlation. [1]

As wave height increases, slope angle increases. [1] (b)
High energy waves deposit coarse material. [1]
Coarse material allows water to percolate, reducing backwash, creating steeper angle. [1]

14. Questionnaires (a) Advantage: Collects primary data on people's opinions/awareness. [1] (b) Disadvantage: People may lie or give biased answers. [1]

15. Safety (a) Slipping on wet rocks / Being swept away by waves. [1] (b) Wear appropriate footwear (studded boots) / Check tide times. [1]

Section D: Extended Response (Questions 16-20)

16. Tectonic Hazards: Human vs Physical Factors (9 Marks)

Level 3 (7-9 marks): Balanced argument. Acknowledges physical magnitude but argues human factors (development, preparation, density) determine impact severity. Uses specific case studies (e.g., Haiti vs Chile, or Japan). Clear conclusion.
Level 2 (4-6 marks): Describes factors but may be unbalanced. Some case study detail.
Level 1 (1-3 marks): Basic statements. Limited explanation.

17. Causes of Global Climate Change (6 Marks)

Natural Causes: Volcanic eruptions (ash blocks sun), changes in solar output, orbital changes. [Up to 3 marks]
Human Causes: Burning fossil fuels (CO2), deforestation (less absorption), agriculture (methane). [Up to 3 marks]
Note: Award marks for explanation of mechanism, not just listing.

18. Formation of a Meander (6 Marks)

River flows around slight bend. [1]
Faster flow on outside bend causes erosion (undercutting bank). [1]
Slower flow on inside bend causes deposition (slip-off slope). [1]
This exaggerates the bend over time. [1]
Helicoidal flow contributes to this process. [1]
Diagram or clear sequence of events. [1]

19. Water Supply Challenges (6 Marks)

Physical: Droughts, uneven distribution, pollution of sources. [Up to 3 marks]
Human: Population growth, industrial demand, poor infrastructure/leakage, cost of desalination. [Up to 3 marks]
Example: Singapore (reliance on imports/NEWater) or California (droughts).

20. Hard Engineering Coastal Management (6 Marks)

Strategies: Sea walls, groynes, rock armour. [1]
Effectiveness: Sea walls reflect energy but are expensive and ugly. [1]
Groynes trap sediment but starve beaches further down coast. [1]
Evaluation: Effective in short term for protecting specific assets. [1]
But can disrupt natural processes and shift problem elsewhere. [1]
Often unsustainable compared to soft engineering. [1]