Coral Reefs
ICSE · Class 11 · Geography
Practice quiz for Coral Reefs — ICSE Class 11 Geography. MCQs and questions with answers to test your preparation.
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Quick Quiz: Coral Reefs
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What is coral in Geography?
How many species of coral polyps are there?
What do coral polyps extract from sea water to build their skeletons?
What is the main purpose of the skeleton built by coral polyps?
Sample Questions
How do coral polyps usually live?
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In colonies
Coral polyps have a tendency to live in colonies.
What happens to the skeletons of dead coral polyps?
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They settle down on the sea floor
When the polyps die, their skeletons settle on the sea floor.
What is formed when the skeletons of many generations of polyps accumulate over time?
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A coral reef
New generations of polyps add skeletons over old ones, building coral reefs over time.
Which temperature range is suitable for coral polyp growth?
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20°C to 30°C
Coral polyps require a temperature of 20°C to 30°C for growth.
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