Cambridge IGCSE Pakistan Studies: Natural Resources — Revision Notes

Condensed for the final weeks. For the full explanation, use the Natural Resources study guide.

One question, four resources

Water, forests, minerals and fish all answer the same underlying question: how is this resource used, and can that use continue without running the resource down? Structure every answer around: what is it used for → what damages it → what would make its use sustainable.

(a) Water

Fact	Detail
Named dams	Mangla, Tarbela, Warsak (know their locations)
Barrages	Name two examples
Key treaty	Indus Waters Treaty — reasons and consequences
Problems	Pollution, supply issues that can lead to conflict

The Indus Waters Treaty links directly to the “conflict” strand of the sustainability theme and Pakistan’s relations with its neighbours — a favourite angle for testing a resource’s wider significance beyond technical detail.

(b) Forests

• Types, main locations, and physical vs human factors controlling their distribution/reduction.
• Named example needed: a plantation area in the Indus Plain, and afforestation on mountain slopes/plateaux.
• Effects of deforestation: soil erosion, silting, flooding.
• Deforestation directly accelerates silting of the dams and barrages named under (a) — a cross-topic link worth stating explicitly in answers.

(c) Mineral resources

Mineral	Detail to know
Limestone, gypsum, rock salt	Main extraction locations and uses
Metallic/non-metallic minerals	Quantities extracted/held in reserve, extent of exploitation
Imported minerals	Main ones, sources, quantities

“Evaluate” questions on mineral extraction want the environmental cost weighed explicitly against the development benefit — not simply listed alongside it.

(d) Fish

• Marine vs inland fishing methods, including fish farms; name species caught/reared in each.
• Named fishing ports: Balochistan and Sindh coasts.
• Improvements in fishing/processing methods.
• Problems facing the industry and sustainable-development possibilities.

Inland fish farming, like mineral extraction, depends on the water supply and quality covered under (a) — another cross-topic link.

The four cross-cutting themes (weave through every part)

1. Problems/opportunities of being a developing country.
2. Effects on and conservation of the environment.
3. Promotion of sustainable development.
4. Importance of feasibility studies.

Every resource represents both an opportunity for development and a risk if managed poorly — this is the argument Section 2’s structured questions are actually testing, not rote recall of four separate lists.

Worked example: connecting two resources in one answer

A question asks: “Explain how deforestation can affect Pakistan’s water resources.” A strong answer traces the cross-topic chain explicitly rather than answering forests and water as separate topics:

Step 1: Deforestation removes tree cover that would otherwise
        intercept rainfall and stabilise soil on slopes.
Step 2: Without that cover, rainfall causes increased soil erosion,
        washing sediment into rivers.
Step 3: That sediment is carried downstream and deposited behind
        dams and barrages (e.g. Tarbela, Mangla) -- a process
        called silting.
Step 4: Silting reduces a dam's storage capacity over time, directly
        undermining the water-supply role covered under resource (a).

This four-step chain answer scores far better than two separate, unconnected paragraphs on deforestation and on dams, because it demonstrates the exact “resources are interlinked” understanding Section 2’s structured questions are designed to test.

Exam traps

• Naming a resource issue without a specific, located example (a named dam, plantation area, mineral site, or fishing port) — vague answers lose marks even with sound underlying explanation.
• Answering “identify” questions with an explanation instead of a named fact/location, or “evaluate” questions with a list instead of a weighed judgement.
• Treating water, forests, minerals and fish as four unconnected topics rather than tracing the links between them (deforestation → silting; minerals/fish → water dependency).
• Omitting the Indus Waters Treaty’s conflict dimension when water supply issues are the focus of a question.

Command words: identify vs evaluate

Section 2 mixes factual recall with judgement-based questions, and mismatching your answer style to the command word is a common source of lost marks:

• “Identify” wants a named fact or location — a dam, a plantation area, a mineral site, a fishing port. A well-explained but unnamed answer scores lower than a bare correct name.
• “Evaluate” wants a weighed judgement — costs set explicitly against benefits, not simply listed one after another. A list of “advantages” followed by a separate list of “disadvantages” with no comparison between them under-performs a genuinely weighed conclusion.

Self-test

1. Name the three dams and state what else you must be able to name for water supply infrastructure.
2. How does deforestation (b) connect to the dams named under water (a)?
3. What must an “evaluate” answer on mineral extraction weigh against each other?
4. Which two coasts host Pakistan’s named fishing ports?
5. What single question should structure your revision of all four resources?

Answers: 1. Mangla, Tarbela and Warsak; you must also be able to name two examples of barrages. 2. Deforestation causes soil erosion that accelerates silting of dams and barrages, reducing their storage capacity over time. 3. The environmental problems caused by extraction against the development benefits and sustainability of that extraction. 4. Balochistan and Sindh. 5. How is this resource used, and can that use continue without running the resource down — applied to what it’s used for, what damages it, and what would make its use sustainable.