Oceans Review

Caused by global winds and Coriolis effect

• waves
• surface currents
• deep ocean currents

Caused by density differentiation

• waves
• surface currents
• deep ocean currents

a gyre is:

• A global wind near the equator
• I circular pattern caused by surface currents
• the land creating the Coriolis effect
• where large amounts of nutrients is brought up to the surface

Salinity is

• How salty the water is
• How dense the water is
• The temperature of the water
• How much volcanic activity there is

Why is up-welling important?

• It brings cold water from the bottom of the ocean to the surface
• It brings nutrient rich water from the bottom of the ocean to the surface
• It creates currents in a circular pattern to distribute different temperatures throughout the oceans
• It allows fish to deep sea dive if they need to

Which of the following would increase ocean salinity:

• Rain
• Rivers dropping it's water into the ocean
• Ice melting
• Evaporation

Which of the following would decrease ocean salinity

• Formation of new ice as water freezes
• Rain
• Evaporation
• Fishing

Which is denser?

• Cold fresh water
• Cold salt water
• Warm salt water
• warm fresh water

What happens to sea levels as ice melts

• Raises
• Lowers

What gas causes ocean acidity levels to increase?

• Sulfur dioxide
• Oxygen
• Nitrogen dioxide
• Carbon dioxide