Oceans Quiz

After hydrogen & oxygen which two elements make up the majority of the ocean?

• Calcium and Sodium

• Magnesium and Sulfur

• Chlorine and Sodium

• Calcium and Magnesium

What is the average salinity of the ocean?

• 20ppt

• 35ppt

• 0.5ppt

• 10ppt

How are salinity and density related?

• Higher salinity leads to higher density

• Higher salinity leads to lower density

• Lower salinity leads to higher density

• Lower salinity leads to lower density

Which of the following is an example of a seafloor structure that rising from the seafloor?

• Continental Shelf

• Abyssal Plain

• Trench

• Sea Mount

Tags

NGSS.MS-ESS2-3

What is the deepest part of the ocean?

• Trench

• Abyssal Plain

• Continental Shelf

• Sea Mount

How do ocean currents help regulate global climate?

• By transporting cold water from the equator to the poles

• By distributing heat and nutrients around the globe

• By transporting warm water from the poles to the equator

• By causing extreme temperatures at the equator and poles

Tags

NGSS.MS-ESS2-6

What causes tides in the ocean?

• Earth's rotation

• Wind patterns

• Gravitational attraction of the moon

• Gravitational attraction of the sun

Tags

NGSS.MS-PS2-4

How are humans dependent on the ocean?

• For mining and oil

• For oxygen production

• For tourism and recreation

• For freshwater supply

Tags

NGSS.MS-ESS2-4

What is one negative impact of human activities on the oceans?

• Unsustainable fishing

• Pollution

• Climate change

• All of the above

Tags

NGSS.HS-ESS3-6

NGSS.HS-LS2-7

What is the primary source of oxygen in the ocean?

• Plankton

• Seaweed

• Marine animals

• Underwater volcanoes