1…B) global energy consumption.is predicted to rise nearly sixty per cent in the next twenty years.

2. …E) this rise is due to factors such as population growth, urbanization, and economic and industrial expansion.

3. …G)many countries have set themselves renewable energy targets, hoping to be able to generate a proportion of the electricity by such renewable means as wind or solar power.

On a cloudy day in Britain 4…C) solar panels, solar water heaters and wind generators can generate enough electricity for the household to pay 140 hours of TV and make 35 cups of tea.

5…A) a one kilowatt solar panelsaves up to a ton of CO2 emissions each years.

6…D) these renewable energy systems.all help to provide alternative sources of energy for private homes and 7 I) they…are no longer prohibitively expensive.

8. … F) a solar roof .can make savings for householders in the long run, and in Britain 9. …H) the government.is providing financial help with the cost of installing them.