Waves & Water

What letter represents F in the diagram?

• Abyssal plain
• Continental shelf
• Sea Trench
• Sea mount

In the diagram above what does letter A represent?

• Abyssal plain
• Continental shelf
• Sea trench
• Sea mount

In the diagram above letter D represents?

• Ocean trench
• Mid-ocean ridge
• Sea mount
• Guyot

Which of the following features is made up of a range of mountains that wind through the ocean?

• Seamount
• Trench
• Abyssal plain
• Mid-ocean ridge

A nearly flat region of the ocean floor, covered with thick layers of sediment, is called a(an)

• Seamount
• Abyssal plain
• Continental slope
• Mid-ocean ridge

The size of a wave is NOT affected by the

• Length of time the wind blows across the water.
• Salinity of the water.
• Strength of the wind.
• Distance the wind blows across the water.

The highest high tide and lowest low tides are called spring tides. Which positions of the Moon produce spring tides in Earth’s oceans?

• 1 and 2
• 2 and 4
• 1 and 3
• 3 and 4

Dunes reduce beach erosion because

• They cause the tides to go higher.
• They cause waves to break offshore.
• The roots of dune plants hold sand in place.
• They prevent people from walking on the beach.

Salinity is a measure of which of the following in water?

• Carbon dioxide
• Oxygen
• Dissolved salts
• Sand

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

• A warm, tropical sea
• The cold Artic ocean
• A bay at the mouth of a big river
• Deep part of the Pacific ocean