2.2 P 20
1
climate change: a general warming or cooling of
average temperatures on earth, and large-scale
changes to weather
electricity bill: a statement that shows how much
you must pay for electricity you have used
fossil fuel: coal, oil, natural gas
global warming: a general warming or cooling of
average temperatures on earth
greenhouse gases: pollution in the air that
contributes to global warming
renewable energies: wind, solar, wave – anything
that doesn’t use up a resource
solar panels: equipment that turns the sun’s
energy into electricity or hot water
2A
1 renewable energy
2 solar panels
3 fossil fuel
4 climate change / global warming
2B
1 Examples of traditional energy include electricity,
gas and oil. Some examples of renewable energy
sources are solar energy, wind energy, hydropower,
geothermal energy and biomass energy.
2 Some suggestions are lower electricity bills and
fewer greenhouse gas emissions.
3 Wood is considered a renewable energy as it is
not fossilised and trees can be replanted.
4 Students’ own answers