The following diagram shows how greenhouse gases trap energy from the Sun.
The diagrams show a structure that is used to generate electricity from wave power.
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The diagram below shows how a central heating system in a house works.
The diagram below shows how electricity is generated in a hydroelectric power station.
The diagram below shows how a biofuel called ethanol is produced.
The diagrams below show the stages and equipment used in the cement-making process, and how cement is used to produce concrete for building purposes.
The diagram below shows how the Australian Bureau of Meteorology collects up-to-the-minute information on the weather in order to produce reliable forecasts.
