Oceans, Salinity, Density, Temperature

What percentage of Earth is covered with water?

• 97

• 65

• 30

• 71

What percentage of Earth is freshwater?

• 97

• 71

• 10

• 30

What percentage of Earth's freshwater is drinkable?

• 3

• 10

• 20

• 1

The word "Marine" means...

• found in or produced by the sea

• to frolic in a meadow of grass

• Saltiness

• a member of a body of troops trained to serve on land or at sea, in particular a member of the US Marine Corps

This is the largest ocean, and the deepest.

• Atlantic Ocean

• Pacific Ocean

• Indian Ocean

• Southern Ocean

The Challenger Deep, the deepest part of the ocean, is _______ feet deep.

• 29,000

• 36,000

• 1,000

• 100

The Challenger Deep is the deepest part of the ocean (36,000 feet) and is found in this ocean

• Indian Ocean

• Atlantic Ocean

• Arctic Ocean

• Pacific Ocean

Light only penetrates this far into the ocean

• 1000 feet

• 200 meters

• 36,000 feet

• 19,000 kilometers

Oceans, on average, are ______ feet deep

• 2,000

• 12,000

• 13,000

• 1,000

What does Oceanography study?

• animals

• the chemical, physical, geological ocean

• seawater

• waves, tides, currents