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WorksheetsHuman Impacts on Coral Reefs
Total questions: 10
Worksheet time: 5mins
How are CO2 emissions hurting coral reefs?
raising ocean temperatures
ocean acidification
lowering dissolved oxygen content in water
all of the above
What is coral bleaching?
corals expelling all of their zooxanthellae
predators eating corals down to their skeleton
corals becoming paler due to sickness
none of the above
Ocean acidification makes it harder for corals to make and repair their skeletons
True
False
Why does coral bleaching happen?
corals are growing old and dying
high stress levels
it is too hard to maintain both themselves and their zooxanthellae
the zooxanthellae are rebelling
What is most likely to happen when to corals after they bleach?
they die of starvation
they immediately take in new zooxanthellae
they wait for a while then take in new zooxanthellae
they become self-sufficient
Are recreational divers good or bad for corals?
Good, they help maintain corals
Bad, they poison corals
Good, they scare away predators that eat the corals
Bad, they unintentionally damage corals by thoughing them with their gear
What ingredient in sunscreen is the most damaging to corals?
zinc oxide
titanium dioxide
oxybenzone
avobenzone
What terminology is used to describe human impacts on nature?
naturogenic
anthropogenic
parasitic
hegemonic
What is the most common cause of coral death
boat damage
scuba divers
global warming
plastic
What are some of the indirect impacts of climate change on coral reefs?
disease
invasives
algae blooms
all of the above
