WorksheetsOcean Acidification Lab Quiz
Total questions: 13
Worksheet time: 6mins
Carbon dioxide (CO2) enters the ocean from the ______________________________.
atmosphere
photosynthesis of aquatic plants and algae
melting of sea ice
freezing of seawater
Carbon dioxide (CO2) is also produced in the ocean by ______________________________.
photosynthesis of marine plants
cellular respiration of marine organisms
sea water freezing
increased alkalinity
Ocean acidification occurs when too much _______________________________ enters the ocean from the atmosphere.
calcium carbonate
carbon dioxide
sulfur dioxide
nitrogen gas
Humans also release carbon dioxide (CO2) into the atmosphere by _____________________
cutting down trees (deforestation)
dumping waste products/pollution into the waterways
adding extra nutrients like fertilizer into the waterways
burning fossil fuels
Carbon dioxide diffuses into the ocean and combines with water (H2O) to form carbonic acid (H2CO3). This ultimately breaks down and releases _________________________ , causing the water to be more acidic.
sodium chloride
calcium carbonate
hydrogen ions
chlorophyll
As a result of __________________________, there is not enough calcium carbonate available, needed by corals, crustaceans, mollusks (snails, etc), and sponges.
chemosythesis
photosynthesis
ocean acidification
cellular respiration
______________________ is needed by corals, mollusks, sponges, and crustaceans to make their skeletons, shells, spicules, and structures.
calcium carbonate
sodium chloride
carbon dioxide
nitrogen gas
What is the primary reason the ocean is becoming more acidic?
Burning of fossil fuels releasing more CO2
Oil spills from offshore drilling and transport
CO2 seepage from deep seafloor vents
Runoff from chemical plants in coastal areas
How does ocean acidification affect marine organisms with calcium carbonate shells?
shells dissolve as the carbonate combines with hydronium to make bicarbonate
thickening of shells as layer of carbonic acid coats the organisms
increases resilience to predation
coral bleaching due to the lower pH range in the ater
Very slight increases in the acidity of seawater __________ marine organisms that make shells or exoskeletons made of calcium carbonate.
doesn't bother
has no effect on
is unhealthy and stresses
According to your lab data, which solution had the most effect on the sea shell?
Vinegar
Soda
Lemon juice
Tap water
According to your data, the lower the pH of the solution the more it ___________ from the sea shell.
Dissolved the calcium carbonate
Added calcium carbonate
Did nothing to the shell
