Ocean Acidification Quiz

What is the main topic of the video?

• Marine biodiversity

• Ocean acidification

• Water pollution

• Global warming

What happens to the concentration of H+ ions when the pH is 5?

• It increases by 10 times

• It increases by 100 times

• It remains the same

• It decreases by 100 times

What is formed when carbon dioxide dissolves in water?

• Hydrochloric acid

• Sulfuric acid

• Carbonic acid

• Nitric acid

What does carbonic acid dissociate into?

• H+ and OH-

• H+ and HCO3-

• H+ and CO3-

• H+ and H2O

What is the role of carbonate ions in the ocean?

• They decrease water salinity

• They form calcium carbonate

• They form carbonic acid

• They increase water temperature

Which organisms benefit from calcium carbonate?

• Jellyfish

• Fish

• Snails and corals

• Seaweed

What happens when there are more hydrogen ions in the ocean?

• More calcium carbonate is formed

• More carbonate ions are available

• Less carbonate ions are available

• The pH increases

What is the result of increased carbon dioxide in the ocean?

• Higher pH

• More carbonic acid

• Less hydrogen ions

• More oxygen

What does the animation show about calcium carbonate formation?

• It forms from hydrogen and oxygen

• It forms from carbon dioxide and water

• It forms from carbonate and calcium

• It forms from carbonic acid and hydrogen

What can happen to carbon dioxide in water according to the animation?

• It can form oxygen

• It can only dissolve

• It can only form carbonic acid

• It can leave the water