Oceanography Quiz

What is the most abundant solid dissolved (chemicals) in seawater?

• Magnesium Chloride (MgCl)
• Calcium Chloride ( CaCl)
• Potassium Chloride (KCl)
• Sodium Chloride (NaCl)

Seawater is typically denser than freshwater due to seawater’s —

• Greater depth
• Lower freezing point
• Smaller mass
• Higher salinity

Which ocean is the largest on Earth?

• Southern
• Indian
• Atlantic
• Pacific

Benthos are organisms that live

• On the surface of the water
• throughout the water column
• ocean floor
• shallow water

Which of the following organisms is an example of nekton?

• Lobster
• Dolphin
• Clam
• Sea Gull

What percent of the Earth's surface is covered in water?

• 71%
• 82%
• 50%
• 63%

Swimming ocean animals

• Nekton
• Plankton
• Benthos
• Mrs. Bekken

Tiny ocean animals that float in the ocean currents

• Zooplankton
• Phytoplankton
• Benthos
• Amphibians

What feature is marked by letter A?

• Continental slope
• Continental shelf
• Continental rise
• continent

What seafloor feature is marked with the letter G?

• Mid-ocean ridge
• submarine canyon
• abyssal plain
• deep ocean trench