Oceans Saltwater

As oceans become deeper, the water pressure ___________________.

• increases

• decreases

• stays the same

Temperature and salinity variations in ocean water cause:

• Mid-ocean ridges
• Horizontal and vertical ocean currents
• Refraction of ocean waves
• Ebb and flow of the tides

Where is ocean water the densest.

• The surface
• The middle
• The bottom
• Lake Michigan

How much salt is in something is called_____________

• Salinity
• Evaporation
• Seamount

Deep Ocean currents are a result of

• Global Wind Patterns
• Earth's Rotation
• Density
• All of the above

Two types of water currents are

• local and global
• sea and land
• surface and deep
• warm and cold

Constantly moving system of deep-ocean circulation driven by temperature and salinity. It moves water around the globe.

• California Current
• Global Conveyor Belt
• Surface Currents
• Gulf Stream

Why are surface currents at the surface of the ocean?

• colder temperature
• colder temperature & more salinty
• warmer temperature & less salinty
• less salinty

Which process does NOT lead to a decrease in the salinity of water?

• runoff from land
• precipitation
• sea ice melting
• evaporation

In addition to salinity, what factor affects the density of seawater?

• depth
• latitude
• temperature
• salt content