IELTS Listening Revision – Science and Innovation

December 15, 2017

 

Questions 1-7 [Recording 1]

 

Complete the notes below.

 

Write NO MORE THAN THREE WORDS AND/OR A NUMBER for each answer.

 

 

CFCs (chlorofluorocarbons) and the Ozone Layer

 

1.  ………. : Electron Capture Detector invented by James Lovelock

 

1973:

 

- Lovelock on self-funded (2) ………. to Arctic/ Antarctica

- Lovelock’s conclusion: CFCs (3) ……….

 

1974: Rowland and Molina publish world’s (4) ………. on connection

 

1975: State of Oregon introduces world’s first ban of CFCs

 

1978: CFCs in (5) ………. Banned in the US and some parts of Europe

 

(6) ……….: Hole in ozone layer above Antarctica first detected

 

1987: Signing of Montreal Protocol

 

1989: EU ban on production of all CFCs by end of (7) ……….

 

 

Questions 8-10 [Recording 1]

 

Which of the notes are true of these scientific items?

 

Choose your answers from list provided below and write the letters A-F next to questions 8-10.

 

 

PROVIDED LIST

 

A. a much longer lifespan

B. can affect CFCs in the stratosphere

C. release leads to ozone damage

D. little or no reaction with CFCs

E. unaffected by refrigeration

F. only found in the stratosphere

 

QUESTIONS

 

8. other chemical compounds ……….

9. ultraviolet radiation ……….

10. chlorine ……….

 

 

Please find the recording here and the answers here.

 

 

How many correct answers did you get? Please share your result by leaving a comment. 

 

 

Interested in science and innovation? Watch this TED Talk delivered by Stephen Petranek to understand scientific progress in colonizing Mars. 

 

 

 

 

 

 

 

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