Ocean Chemistry and Plastics

Air is more dense than water:

• True
• False

As you move deeper in the ocean, the acidity _____

• decreases
• becomes more dense
• increases
• salinity increases

Photosynthesis requires carbon dioxide

• True
• False

What 4 elements make up 99% of all living things?

• Phosphorous, Selenium, Titanium, Oxygen
• Carbon, Sulfur, Helium, Nitrogen
• Carbon, Hydrogen, Oxygen, Nitrogen
• Carbon, Hydrogen, Oxygen, Sulfur

How much of Styrofoam is made of air?

• 98%
• 2%
• 30%
• 5%

Saltwater fish cannot be placed into freshwater because of:

• Osmotic Pressure
• Because they do not like it
• Saltwater fish are fine in freshwater
• Hydrogen bonds

Nitrogen _______ is the process of converting NO2' and N2 into usable forms by living organisms, NH4+ and NO3-.

• Fixation
• Fibrillation
• Formulation
• Cycle

Kaneohe Bay suffered from ____ in the 1960s and 1970s which caused eutrophication of the bay.

• too many fish
• sedimentation only
• shark attacks
• sewage overflow

Which of the following is a common source of oxygen in the ocean?

• Aquatic mammals
• Underwater volcanoes
• Ocean plants
• Hyrdothermal vents

Tags

NGSS.MS-LS1-6

How much more acidic is the ocean today than in pre-industrial times?

• 15% more acidic
• 2% more acidic
• 30% more acidic
• It is not more acidic