WorksheetsCoral Reefs
Total questions: 13
Worksheet time: 11mins
What percentage of the ocean is taken up by coral reefs?
10-12 percent
25 percent
less than one percent
more than fifty percent
What are coral reefs often compared to?
forests
gardens
rainforests
deserts
What percentage of the ocean's sea life lives in coral reefs?
10 -15%
20%
45%
25%
Coral reefs are endangered by
climate change
overfishing
pollution
all of the above
Coral Reefs are found in
tropical waters
waters around the South pole only
sub-tropical waters
A and C
Coral reefs are home to how many species?
thousands
billions
hundreds
millions
Scientists fear coral reefs could die out by
2035
2050
2089
2020
What causes coral bleaching?
oil spills
warmer water temperatures
overfishing
red tide
What is one way scientists trying to save the coral reefs?
by growing coral and planting it in the ocean
by restricting access to reefs
by adding new species of fish to the reefs
by adding fertilizer to the coral reefs
What is the largest coral reef on the planet?
Rainbow Reef, Fiji
Great Chago Archipelago, Indian Ocean
Amazon Reef, Brazil
Great Barrier Reef, Australia
Barrier reefs
