Coral reefs are like colorful underwater ______ where many different animals and plants live.
clouds
holes
cities
games
Coral reefs need our help to stay healthy, so we should be kind to the ocean and ______ trash into it.
not throw
always throw
sometimes throw
Coral reefs are ______ because they have bright and brilliant colors.
remarkable
boring
the same
Coral reefs like to live in _____ waters, which means they are not too deep.
dirty
deep
shallow
polluted
Many different animals ____ coral reefs.
forget
kill
occupy
leave
The coral reefs' _____ colors come from the corals
brilliant
dark
dull
white
Some fishing methods have ____ effects on reefs.
negative
illegal
hungry
friendly
Cyanide fishing releases liquid cyanide, a deadly _____, into the reef.
chemical
fishing pole
hook
robot
A tank or building where sea animals are kept is an ____.
museum
aquarium
courthouse
library
_________ means taking care of nature, like coral reefs, so they stay healthy and happy.
Aquariums
Pollution
Conservation
Construction
When coral polyps die, they leave behind a material called ______.
clay
marble
brick
limestone
Limestone was used to construct ________;
The Great Wall of China
my house
The Great Pyramids of Egypt
The Statue of Liberty
Coral reefs _____ a small 25% of ocean life.
occupy
swim
lose
construct
1,000,000,000,000 =
a google
a trillion
a million
a billion
The greatest limestone structures are _____.
pyramids
castles
coral reefs
churches
Most coral reefs are found in warm, shallow ______.
bathtubs
pools
lakes
oceans
