Oceans module

As oceans become deeper, the water pressure ___________________.

• increases
• decreases
• stays the same

The process of upwelling occurs as a result of

• warm, less-dense deep water that floats to the surface.
• cool, dense surface water that sinks and pushes deep water up.
• surface waves that mix surface and deep water
• sunlight that warms deep water that rises to the surface.

Areas where salt and fresh water mix are known as

• Oceans

• Estuaries

• Aquifers

• Intertidal zone

The most abundant form of ocean life is

• Zooplankton

• Phytoplankton

• Algae

• None of these

Which of the following would lead to an increase in dissolved oxygen in a body of water?

• warmer temperatures

• thermal pollution

• photosynthesis

• cellular respiration

• hypoxia

As the ocean gets deeper,

• Pressure goes down
• Light goes up
• Temperature decreases
• None of the above

As depth increases..........

• Things become shallow

• temperature decreases, pressure increases, and light decreases

• It is more salty

• An Ocean Current

A wetland that contains a mixture of fresh water and salt water is called

• an estuary
• a stream
• a river
• a pond

Upwellings...

• bring humans for fishing.

• draw in marine organisms for feeding.

• increase productivity.

• All of these.

According to scientists, only 1% of the water on Earth is available for human use. Where is this available water most likely found?

• ocean

• groundwater

• rivers and lakes

• glaciers and ice caps