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