O-Level Geography

Question 1

What is the definition of a 'population pyramid'?

Accepted Answer

A bar graph showing the age and sex distribution of a population

Answer

A population pyramid is a bar chart showing the distribution of a population by age groups and sex (male/female), useful for analysing demographic trends.

Question 2

What causes the urban heat island effect?

Accepted Answer

Higher temperatures in urban areas due to human activity and lack of vegetation

Answer

The urban heat island effect occurs because cities absorb and retain more heat than rural areas due to concrete, asphalt, reduced vegetation, and waste heat from human activities.

Question 3

Which type of weathering involves the physical breakdown of rocks without chemical change?

Accepted Answer

Mechanical/physical weathering

Answer

Mechanical (physical) weathering is the breakdown of rocks into smaller pieces without any change in chemical composition, e.g., freeze-thaw action.

Question 4

What is the 'greenhouse effect'?

Accepted Answer

The trapping of heat in the Earth's atmosphere by greenhouse gases

Answer

The greenhouse effect is the process by which greenhouse gases (CO₂, methane, water vapour) trap heat in the Earth's atmosphere, warming the planet.

Question 5

What is the term for the seasonal migration of people between different areas?

Accepted Answer

Transhumance

Answer

Transhumance is the seasonal movement of people with their livestock between different pasture areas, typically between lowlands in winter and highlands in summer.

GCE O-Level Practice Test

GCE O-Level Practice Test

O-Level Geography