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ZIMSEC O-Level Chemistry

Sources of pollutants

Sources of pollutants in ZIMSEC O-Level Chemistry: what the syllabus expects you to know, the learning objectives and how to practise.
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Overview

Form 4 (competency matrix 8.33.1): sources, effects and control of pollution.

Learning objectives

What the syllabus expects you to be able to do.

  1. 7.4.2.1List the sources of pollutants, including industrial waste, exhaust fumes and domestic waste.
  2. 7.4.2.2Explain the effects of pollution: acid rain, eutrophication, global warming, health hazards and depletion of the ozone layer.
  3. 7.4.2.3Describe methods of controlling pollution, such as catalytic converters and recycling.

Lessons

  • Air pollution: sources, effects and control

    40 min

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Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Sources of pollutants: sample question

1 mark

True or false: you can tell that carbon monoxide is present in a room because of its smell.

Is the statement true or false?

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