Listen to the passage and answer the three related questions.

To access the questions, click on 1, 2 and 3 respectively.

After reading the four choices, click on the response that best answers the question.

The following is an example:

- Since the 1980s, people have become more aware of the environment. The recycling of cardboard, plastic, glass and paper has grown out of this awareness.

- People have also finally realized that much of industry’s progress, based on the use of fossil fuels, is damaging the planet.

- Did you know that scientists have long been trying to develop alternative sources of energy, like tidal power?

- Yes, tidal power stations could use the power of the tides to supply households with electricity.

- There’s also solar power, but its use is dependent on weather conditions!

According to the dialogue, what are scientists working on.

Выберитеодинответ:

a. They are trying to restore tidal power and solar energy.

b. They are trying to find an alternative means of recycling.

c. They are studying ways to use tidal and solar power for electricity.

d. They are examining the possibility of removing pollution caused by fossil fuels.