Basic Facts About Coral Reefs Quiz
10 Questions
| Total Attempts: 6139
Questions and Answers
- 1.1. How much of the Earth's surface does coral reefs cover?
- A.
Less than 1%
- B.
1% to 5%
- C.
25%
- D.
More than 50%
- 2.2.How much of the marine fish species do they support?
- A.
1%
- B.
50%
- C.
25%
- D.
24%
- 3.3.What is/are the benefit(s) of coral reefs?
- A.
Protecting coastal areas from erosion
- B.
Its porous limestone skeleton is used as a material for human bone grafts
- C.
Treatment of HIV, cardiovascular diseases and ulcers
- D.
All of the above
- 4.4.How much of the coral reef ecosystem will be destroyed by year 2050?
- A.
50%
- B.
70%
- C.
5%
- D.
99%
- 5.5.What is/are the threat(s) to coral reefs?
- A.
Global climate change
- B.
Destructive fishing methods
- C.
Pollution
- D.
All of the above
- 6.6.How much money do coral reefs contribute?
- A.
USD $37.5billion
- B.
USD $3.75billion
- C.
USD $375billion
- D.
USD $370billion
- 7.7. How many people rely on coral reefs for their livelihoods and food.
- A.
500million
- B.
50million
- C.
500billion
- D.
5billion
- 8.8.What are destructive fishing practices?
- A.
Overfishing
- B.
Blast fishing
- C.
Cyanide fishing
- D.
All of the above
- 9.9. What are coral reefs made out of?
- A.
Coral polyps
- B.
Plankton
- C.
Zaoxanthellae.
- D.
Tentacles
- 10.10.The coral is dead once the coral bleached.
- A.
True
- B.
False
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