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