CAIE IGCSE Chemistry Water Pollution and Aquatic Harm
Practise identifying plastics, toxic compounds, sewage microbes and fertiliser ions as water pollutants and linking each to disease or aquatic damage.
- Syllabus
- 2026–2028
- Course
- Chemistry 0620
Exam points
- identify plastics and toxic metal compounds as pollutants that damage aquatic life
- link nitrates and phosphates from fertilisers to deoxygenation and aquatic harm
- link untreated sewage microbes or inadequate clean water supply with human disease
10.1.6—Harmful substances: toxic metal question 1
[Maximum number: 1]
Some substances found in water extracted from a river are listed.
1 plastics
2 nitrates
3 oxygen
Which substances are harmful to aquatic life?
A
1 and 2
B
1 and 3
C
2 only
D
3 only
A
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