WorksheetsChasing Coral
Total questions: 10
Worksheet time: 5mins
Where are Reef Building Corals found?
Where water temperature is between 23 and 29 degrees C
Where the water is not very salty
Where the water is clear, so there is a lot of light
Where water is very deep
In tropical and semitropical waters
What are some ways a coral reef could be harmed?
Increase in fishing
Sea temperature rising
Decrease in water clarity
Increase in ocean acidification
Which of the following causes coral "bleaching"?
cooler ocean temperatures
pollutants in the water
warmer ocean temperatures
higher salt concentrations in the ocean
What relationship exists between the coral polyp and the zooxanthellae algae that live inside them?
Mutualism
Predation
Commensalism
Parasitism
Coral secrete _______________ that creates the structure of the coral reef.
Sediments
Staghorn
Calcium carbonate
Sodium carbonate
Coral bleaching events occur because coral
do not have enough calcium carbonate to build their skeletons.
reflect light back into space, enhancing the greenhouse effect.
undergo extreme heat stress and eject their symbiont.
consume the poisonous zooxanthellae algae and subsequently die.
what do our oceans control
weather
climate
oxygen we breathe
car traffic
where does much of the seafood we eat begin its life?
rocky shores
coral reefs
open oceans
deepsea
how many people rely on coral reefs as their main source of food?
half a billion-one billion
half a million- one million
half a trillion-one trillion
