Ocean Acidification Review

Which molecule makes water acidic?

• Carbonate Ions

• Carbon Dioxide

Which organism might benefit from the increase of carbon dioxide in the world’s oceans?

• crabs and lobster

• Fishes

• Clams and oysters

• Sea grasses

Tags

NGSS.HS-LS2-5

Which of the following correctly explains why shellfish are affected by ocean acidification?

• The carbonic acid forms bicarbonate, which cannot be used by shellfish to build their shells.

• The carbonic acid forms calcium carbonate, which cannot be used by shellfish to build their shells.

• Animals exhale, releasing carbon dioxide into the ocean which forms carbonic acid that prevents shellfish from being able to build shells.

• The carbonic acid dissolves through the shells.

When carbon dioxide dissolves into the ocean and mixes with water, it forms ___________ _______.

Tags

NGSS.HS-PS1-4

When carbon dioxide concentrations in the air increase, what happens to carbon dioxide levels in the water?

• increase

• decrease

• are not affected

Tags

NGSS.HS-ESS2-6

NGSS.HS-LS2-5

Carbon dioxide from the air combines with water molecules in the ocean to create:

• carbonic acid

• carbonic bases

• calcium carbonate

• hydrogen cyanide

Tags

NGSS.HS-ESS2-6

NGSS.HS-PS1-2

Increasing carbon dioxide in the atmosphere leads to

• ocean acidification

• water evaporating from the ocean

• healtier ocean ecosystems

• increase in fish populations

Tags

NGSS.HS-ESS2-6

NGSS.HS-ESS3-5

An increase in ocean acidity leads to

• weaker shells on ocean creatures

• stronger shells on ocean creatures

• larger shells on ocean creatures

Tags

NGSS.HS-ESS2-2

What is the primary cause of ocean acidification?

• Increased levels of carbon dioxide in the atmosphere

• Decreased levels of oxygen in the ocean

• Increased levels of nitrogen in the atmosphere

• Decreased levels of salt in the ocean

Tags

NGSS.HS-ESS2-6

Which chemical reaction represents the formation of carbonic acid in ocean water?

Tags

NGSS.HS-ESS2-5