Ocean Acidification

Why is lower pH in oceans a problem?

According to the picture above.

• CO₂ is causing marine life to die by "poisoning' the water

• CO₂ is destroying sea shells

• CO₂ is formed by the combustion of octane.

Why are coral reefs important? Hint: Answers are not limited to one.

• Medicines are made from coral.

• Provide habitats for marine life

• Provides protection from land and ocean erosion

• Lessen the impact of storms and help prevent the ocean bed from being washed out.

Which molecules makes water acidic?

• Carbon dioxide

• Carbonate ion

• Hydroxide ion

• None of the above

Why is it important to know that shells decreases in mass in more acidic water?

• Shows us how organisms could die as their predators eat them.

• Shows us how organisms need acidic water to open their shells so they can eat

• Shows us how organisms' shells may become weak and the organisms could die

• Shows us that shells will decrease in mass but doesn't really relate to the real world.

An example of a marine organism that needs calcium carbonate

• a shark

• a crab

• an octopus