Chp 14 The Ocean Floor

Front

What forms at mid-ocean ridges?

Back

New ocean floor.

Front

Which ocean is the largest and deepest?

Back

Pacific Ocean.

Front

What does sonar equipment measure?

Back

The depth of the ocean floor.

Front

From which type of material does biogenous sediment form?

Back

Once-living organisms.

Front

What percentage of Earth's surface is covered by water?

Back

71 percent.

Front

What are mid-ocean ridges?

Back

Underwater mountain ranges formed by plate tectonics.

Front

What is the significance of deep-sea trenches?

Back

They are the deepest parts of the ocean and are formed by subduction zones.

Front

Define biogenous sediment.

Back

Sediment that originates from the remains of living organisms.

Front

What is the role of ocean currents?

Back

They help distribute heat and nutrients throughout the ocean.

Front

What is the continental shelf?

Back

The submerged border of a continent that slopes gently into the ocean.