Unit 8: Human Population:

2-Mark Question

1. Define population density.

Model Answer:

Population density is the number of people living per unit area of land, usually expressed as people per square kilometer.

Why this works:

• Number of people per unit area (1 mark)

• Correct unit/example of measurement (2nd mark)

4-Mark Question

2. Explain two factors that affect population distribution.

Model Answer:

Relief: Areas with steep or mountainous relief are often less densely populated because building settlements, roads and infrastructure is more difficult.

Climate: Areas with extreme climates, such as very hot deserts, generally have lower population densities because water is scarce and living conditions are difficult.

Why this works:

• Two factors → explanation of how each affects where people live.

6-Mark Question

3. Discuss the advantages and disadvantages of rapid population growth.

Model Answer:

Rapid population growth can provide a larger workforce, increasing economic production and potentially supporting economic development. A larger population also creates a larger market for goods and services.

However, rapid growth increases demand for food, water, housing, healthcare and education. If infrastructure cannot keep up, overcrowding, unemployment, poverty and pressure on natural resources may increase. Rapid urban growth can also contribute to pollution and waste-management problems.

Overall, population growth can provide economic opportunities, but the benefits depend on whether governments can provide sufficient employment, infrastructure and resources for the growing population.

8-Mark Question

4. Describe the problems caused by rapid urbanisation and evaluate strategies for managing them.

Model Answer:

Rapid urbanization occurs when the proportion of people living in urban areas increases quickly. This can create problems such as overcrowding, traffic congestion, air pollution and increased waste production. Rapid population growth may also lead to informal settlements where housing, sanitation and clean water are inadequate.

Governments can manage these problems by improving public transport, expanding water and sanitation systems and providing affordable housing. Urban planning can help ensure that residential, commercial and industrial areas are properly organised. Recycling and improved waste collection can reduce environmental pollution.

These strategies can improve living conditions, but large infrastructure projects are expensive and may be difficult for rapidly growing cities to finance. Poor planning can also mean that infrastructure does not keep pace with population growth.

Overall, long-term urban planning combined with investment in infrastructure is essential for managing rapid urbanisation effectively.

10-Mark Question

5. Assess the effectiveness of different strategies for managing population growth.

Model Answer:

Population growth can be managed through education, access to family planning, improved healthcare and government policies. Education, particularly for women, can increase awareness of contraception and employment opportunities, often leading to smaller family sizes. Access to affordable contraception allows people to control the number and spacing of their children.

Improved healthcare can reduce infant mortality, which may reduce the perceived need for large families because parents are more confident that their children will survive. Governments may also introduce incentives for smaller families or campaigns promoting family planning.

However, population policies may be less effective if people do not have access to healthcare and education or if cultural and economic factors encourage large families. Government policies that force people to have fewer children can also create social and ethical problems.

Overall, education and voluntary access to family planning are likely to be the most sustainable strategies because they allow individuals to make informed decisions rather than relying on coercive policies.

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