Currents, Upwelling & Threats to Oceans

Ocean acidification begins with

• pollution from ships

• carbon dioxide released into the atmosphere

• dumping of waste from cities into the ocean

Very slight increases in the acidity of seawater __________ marine organisms that make shells.

• is healthy and strengthens

• has no effect on

• is unhealthy and stresses

According to this slide CO₂ (Carbon Dioxide) is

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

• destroying sea shells

• formed from the combustion of Octane

SI Question: Answer is in the picture:

This image demonstrates that

• There is a direct correlation with the atmospheric CO₂ and the CO₂ in seawater

• That pH of the ocean increases as the atmospheric CO₂ increases

• That there is no correlation between pH of the ocean and atmospheric CO₂

As the ocean becomes more acidic, the pH of the water

• increases
• decreases

Tags

NGSS.MS-PS1-2

What is the typical pH of an acid?

• higher pH, greater than 7

• 7

• lower pH, less than 7

Burning carbon-based fossil fuels releases what gas into the atmosphere?

• acid gas

• chlorine gas

• oxygenated hydrogen

• carbon dioxide

Tags

NGSS.HS-ESS2-6

Within the carbon cycle, anything that absorbs more carbon from the atmosphere than it releases is called a __.

• carbon sink

• carbon source

Forests are carbon sinks because they remove carbon dioxide from the atmosphere through ____________.

• combustion

• respiration

• photosynthesis

• decomposition

Upwelling is the process where warm, nutrient rich water from deep in the ocean rises to the surface.

• False
• True

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-6