Ocean Acidification

About ___ of anthropogenic (human caused) carbon dioxide released into the atmosphere is absorbed by the ocean.

• 10%

• 30%

• 60%

• 90%

Tags

CCSS.6.RP.A.3C

Relating to or resulting from the influence of humans on natural systems, usually in the context of pollution or habitat destruction.

• Anthropogenic

• Biologic

• Altruistic

• Empathetic

Tags

NGSS.HS-ESS3-1

NGSS.HS-ESS3-4

NGSS.HS-LS2-7

Which of the following dissolved gases reacts chemically with seawater.

• Nitrogen gas

• Oxygen gas

• Carbon dioxide gas

Tags

NGSS.MS-PS1-2

Which of the following defines pH?

• The measure of carbon dioxide in solution

• The measure of hydrogen ions (H+) concentration.

• The measure of dissolved salts in solution

• The measure of dissolved oxygen in solution

Shell-building organisms make their shells from calcium ions (Ca+2) and

• bicarbonate ions (HCO3-)

• carbonate ions (CO3-2)

• carbonic acid (H2CO3)

• carbon dioxide (CO2)

Which of the following are types of marine organisms that make structures of calcium carbonate?

• Cartilaginous fishes, like sharks

• All cnidarians, such as jellyfish, sea anemones, and soft and hard corals

• Molluscs, such as clams, oysters, and snails

• Sponges

When the temperature of seawater decreases, the amount of carbon dioxide that can be absorbed

• increases.

• decreases.

• is not affected.

Tags

NGSS.HS-ESS2-6

Which of the following is used to describe a solution with pH values lower than 7?

• acidic

• basic, or alkaline

• neutral

pH is calculated as a -log [H+]. As the amount of hydrogen ions (H+) increases in a solution, its pH level...

• increases

• decreases

Which of the following is the chemical formula for the bicarbonate ion?

• 
• 
• 
•