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