Ocean Acidity and pH Concepts

The video explains the 'Ocean Acidification - Surface pH' dataset, covering data from 1861 to 2100. It discusses the pH scale, highlighting how ocean pH levels are projected to change over time due to increased CO2 emissions. The video explains the chemical reactions that occur when CO2 is absorbed by the ocean, leading to increased acidity and its impact on marine life.

What is the time span of the 'Ocean Acidification - Surface pH' dataset?

• 1900 to 2000

• 1861 to 2100

• 2000 to 2100

• 1800 to 1900

What does a pH value of 7 indicate?

• Basic

• Neutral

• Acidic

• Highly acidic

In the dataset, what color represents a pH of 8.3?

• Dark blue

• Green

• Yellow

• Red

By the year 2100, what is the expected pH level of the oceans?

• 8.3

• 6.5

• 7.7

• 7.0

What is the natural pH tendency of the ocean?

• Highly acidic

• Acidic

• Neutral

• Basic

What happens to the ocean's color representation as pH decreases?

• Turns blue

• Turns red

• Turns purple

• Turns yellow

What does 'ppm CO2' refer to in the context of the dataset?

• Parts per million of carbon dioxide

• Parts per million of oxygen

• Parts per million of nitrogen

• Parts per million of hydrogen

How does the ocean's absorption of CO2 affect its pH?

• Increases alkalinity

• Decreases acidity

• Increases acidity

• Has no effect

What chemical is formed when CO2 is absorbed by the ocean?

• Carbonic acid

• Nitric acid

• Hydrochloric acid

• Sulfuric acid

Why is increased ocean acidity a concern for marine species?

• It enhances their growth

• It disrupts their chemical environment

• It has no impact

• It makes the water warmer