Answer — Exercise 5
15 - It'll solve all our problems·Outcomes Elementary - Student's Book
Question
Work in pairs. Discuss why the writer mentions these things. Then read the article again to check your ideas.
Answer
- In many places the economy’s doing badly.
- In Morocco they are building huge solar farms.
- Nano solar cells could be used in paint to put on the outside of houses.
- Very, very small solar cells are being developed for offices.
- Red and blue LED lights help plants to grow very quickly. LED lights are bright, last longer than other lights and don’t get too hot.
- With LED lights, plants can be grown in a cupboard.
- On pink farms, the farmer doesn’t need chemicals because conditions are perfect.