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