WorksheetsCoral Reefs conservation
Total questions: 20
Worksheet time: 10mins
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 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
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
Why don't coral reefs grow well below 130 feet?
because the water is too warm below 130 feet
because coral reefs need sunshine
because the water is dirty
How long does it take for coral reefs to grow up to 3 feet?
10 years
100 years
1000 years
When an ancient underwater volcano disappears, the ring that it forms is called...
fringing reef
barrier reef
coral atoll
Which underwater animal has a pouch that they can carry eggs in until they hatch?
longnose butterfly fish
green sea turtle
giant clam
sea horse
What is one big threat to coral reefs?
sharks
pollution
turtles
anemones
Coral Reefs are found where?
In the desert
In the Ocean
In the rain forest
Coral is actually
a plant
an animal
a shark
Coral is actually called a
polymer
polygon
polly pocket
polyp
Coral reefs are large underwater structures made of...?
trees and dirt
limestone, algae, plants and animals
crabby patties
grass, rocks and flowers
Coral reefs are very...?
dull
empty
Colorful
deserted
Coral polyps eat...?
crabby patties
plankton
seeds
fish
Corallite are the remains of old coral polyps...?
clothes
skeletons
rocks
sand
