Coral Reefs

 

Listen to the passage from   http://www.abc.net.au/rn/science/earth/audio/earth_28022004_2856.ram (first five minutes only), or S:\Program_Area\General Education\Higher Diploma\Levels Three & Four\Listening\Coralreef.mp3 (HCT Abu Dhabi students only)

 

Questions 1 to 5

Complete the box below.

 

Who?	% of reef damaged or destroyed?	By when?	Causes?
American scientists	(1) _______%	2099 (End of this century)	§         Climate §         (2)_________ §         Pollution
(3)________________	(4)_______%	(5)__________	Climate Change

 

Questions 6 to 8
Complete the flowchart with missing information. Use no more than THREE words.

 

 

9.      What percentage of carbon dioxide (CO₂) from fossil fuel emissions is stored in the ocean?

a.       5%

b.      33%

c.       50%

d.      66%

 

10.  Which part of the ocean absorbs the most carbon dioxide?

a.       water near the coast

b.      deep ocean

c.       surface

d.      polar ice-caps

 

Questions 11 to 14
Complete the passage below with words from the box.

                       

If coral secretes (produces) less calcium, it will have several effects. It could become more (11 )___________, meaning that it would break easily and be (12) __________ quickly. Another effect is that it would (13)________________. This would mean that it could not (14)____________ very well for space on a reef, and in a reef, space is very important.

 

 

Questions 15 to 19

True, False or Not Given?

 

15.           The ocean and atmosphere are unrelated                                       ________

16.           The speakers are hopeful for the future of coral reefs                      ________

17.           Reefs will probably die before ice at the poles starts to melt            ________

18.           If fuel emissions are reduced, coral reefs will be saved                    ________

19.           Hawaii’s reefs are expected to survive to about 2090                     ________