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WorksheetsCoral Reefs
Total questions: 10
Worksheet time: 5mins
Between which lines of latitude are coral reefs located?
10°N and 10°S of the equator
20°N and 20°S of the equator
30°N and 30°S of the equator
40°N and 40°S of the equator
Where is the largest single reef system in the world?
Southeast Asia
Red sea
Great Barrier Reef
Caribbean belt
Between what temperatures can coral grow?
18°c-32°c
10°c-38°c
9°c-21°c
15°c-22°c
What is the ideal temperature for coral growth?
32°c-35°c
15°c-19°c
28°c-34°c
22°c-25°c
Up to what depth can coral grow?
20m
50m
70m
100m
Which type of reef? The reef is attached to the coastline and extends approximately 100m out to sea.
Fringing
Atoll
Barrier
Deep water
Which type of reef? The reef formed around a tropical island that has now disappeared.
Fringing
Atoll
Barrier
Deep water
How many people rely on coral reefs for their main source of protein?
2 million people
25 million people
250 million people
2500 million people
Coral reefs cover less than 1 percent of the ocean. What percentage of marine life live on coral reefs?
2%
7%
15%
25%
What happens when to reefs when ocean temperatures change too quickly?
Coral bleaching
Coral staining
Coral colouring
Coral tainting
