Oceans Motions

Why is upwelling so important for ocean life?

• It creates more oxygen for the ocean life.
• It bring up nutrients for the ocean organisms.
• It helps to move the organisms that can’t move on their own.
• It allows the ocean water to become mixed so it is the same temperature throughout.

A large stream of water that flows through the ocean.

• Tide
• Wave
• Current
• Wind

The daily changes (rise and fall) of ocean water.

• Upwelling
• Wave
• Tides
• Wind

Which of the following areas in the ocean is likely to have the lowest salinity?

• A warm tropical sea                   
• The cold Arctic Ocean
• Deep parts of the Pacific Ocean
• At the surface where it is precipitating

The movement of energy through a body of water.

• Wave
• Tide
• Current
• Wind

As you descend from the surface to the ocean floor what kind of changes would you expect to experience?

• Temperature increases and pressure decreases.
• Temperature decreases and pressure decreases.
• Temperature increases and pressure increases.
• Temperature decreases and pressure increases.

The upward movement of deep, cold, nutrient-rich water to the surface is a(an) ______________.

• Tide
• Wave
• Current
• Upwelling

This causes a wave and surface currents.

• Wind
• Tides
• Moon
• Upwelling

In the drawing, which letters represent high tide and why?

• A & C because the wind is pulling more strongly on them.
• B & D because the Sun is pulling more strongly on them.
• A & C because of the moon's gravitational pull
• B & D because of the ocean's salinity

Which of the following processes causes the salinity of the ocean to increase? 

• Erosion and weathering
• Precipitation and freezing
• Evaporation and Freezing
• Condensation and precipitation