WorksheetsCoral Reefs
Total questions: 11
Worksheet time: 6mins
What is the main reason of coral death?
Excess Bleaching
Excess Nitrogen
Coral Bleaching
No sunlight
What is coral bleaching?
When the sun heats up the water and the coral cannot withstand the high temperatures
When people throw bleach into the ocean
When a type of fish eats away at the coral, making it looked bleached.
When the coral naturally dies,
What is the cause of coral bleaching.
Space Heaters
Pollution
Hot air
Global Warming
True or False: All coral cannot withstand high temperatures and the nitrogen
True
False
What causes the blockage of the sun?
The fish swimming in the water
The nitrogen left in the water
The blooms of bacteria in the water
None of the above
Do coral reefs
have any chance of surviving?
Yes, but only with our help
No, they are dead
Maybe, it depends on future events
What causes the lack of oxygen?
Lack of bacteria
Lack of algae
Lack of sunlight
Lack of flowers
What color does the coral turn when it is bleached?
Blue
Clear
White
All of the above
True or False: Humans don't cause the damage to coral.
True
False
Bonus: what is the correct answer?
This one
This one
This one
This one
How long does it take for coral to heal from intense temperatures?
2 months
2 years
6 months
6 years
