A) Pacific Ocean
B) Atlantic Ocean
C) Arctic Ocean
D) Indian Ocean

A) Through tectonic activity
B) By sediment accumulation alone
C) From the growth of coral reefs around volcanic islands
D) From the remains of dead fish

A) Forest
B) Mountain
C) Desert
D) Lagoon

A) Marshall Islands
B) Australia
C) Bahamas
D) Fiji

A) Nesting
B) Building the coral structure
C) Photosynthesis
D) Swimming

A) Freshwater supply
B) Coastal protection
C) Erosion increase
D) Desertification

A) Underwater construction
B) Drilling for samples
C) Coral reef surveys
D) Satellite imaging alone

A) Sustainable fishing
B) Nature conservation
C) Marine research
D) Tourism

A) High nutrient water
B) Sunlight
C) Cold temperatures
D) Freshwater influx