Practise

Question bank

Original exam-style questions, mapped to your syllabus. Answers are checked for mathematical equivalence and every attempt updates your mastery.

12 questions

SA-OB-HI-0011 markL1 FoundationCalculatorPollution

Eutrophication is caused by excess

Salam Academy Original Practice · Proposed mark scheme

SA-OB-HI-0121 markL1 FoundationCalculatorConservation

Captive breeding programmes help

Salam Academy Original Practice · Proposed mark scheme

SA-OB-HI-0021 markL2 StandardCalculatorPollution

In eutrophication, fish die mainly because

Salam Academy Original Practice · Proposed mark scheme

SA-OB-HI-0031 markL2 StandardCalculatorHabitat loss

Deforestation increases atmospheric CO₂ because

Salam Academy Original Practice · Proposed mark scheme

SA-OB-HI-0041 markL2 StandardCalculatorHabitat loss

A consequence of deforestation is

Salam Academy Original Practice · Proposed mark scheme

SA-OB-HI-0051 markL2 StandardCalculatorPollution

Non-biodegradable plastics are harmful because they

Salam Academy Original Practice · Proposed mark scheme

SA-OB-HI-0061 markL2 StandardCalculatorConservation

A seed bank helps conservation by

Salam Academy Original Practice · Proposed mark scheme

SA-OB-HI-0071 markL2 StandardCalculatorConservation

Fishing quotas

Salam Academy Original Practice · Proposed mark scheme

SA-OB-HI-0081 markL2 StandardCalculatorConservation

Using nets with a larger mesh size

Salam Academy Original Practice · Proposed mark scheme

SA-OB-HI-0091 markL2 StandardCalculatorPollution

Methane is released by

Salam Academy Original Practice · Proposed mark scheme

SA-OB-HI-0102 marksL2 StandardCalculatorHabitat loss

A forest of

500\ \text{km}^2

loses

35\ \text{km}^2

. What percentage is lost?

Salam Academy Original Practice · Proposed mark scheme

SA-OB-HI-0111 markL3 ExamCalculatorPollution

The correct sequence in eutrophication is

Salam Academy Original Practice · Proposed mark scheme