, 4
3 A student wants to know how different energy resources are used to generate electricity.
(a) Complete the table about the generation of electricity.
Use words from the list:
Coal Solar radiation Wind
How the energy resource generates
Energy resource
electricity.
Steam is produced. The steam drives a
turbine, which is connected to a generator.
The energy resource turns the turbine
directly. The turbine is connected to a
generator.
Panels are used which generate electricity
directly.
[2]
(b) Wind and solar radiation are examples of renewable energy resources. Coal is a non-renewable
energy resource.
State one other renewable energy resource and one other non-renewable energy resource.
Renewable energy resource: ...........................................................................................................
Non-renewable energy resource: .....................................................................................................
[2]
(c) Complete the sentences about global warming.
Put a ring around each correct option.
One of the main greenhouse gases in the Earth’s atmosphere is carbon dioxide / nitrogen / oxygen.
The amounts of greenhouse gases in the atmosphere have been increasing over the past two
hundred years mostly because of the increasing use of biofuels / fossil fuels / nuclear fuels.
[2]
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