Science Study Guide page 10

What are some important features of the ocean floor?

• Icebergs, glaciers, ice shelves, and ice sheets

• Coral reefs, mangroves, estuaries, and lagoons

• Continental shelf, continental slope, continental rise, abyssal plain, and ocean trenches

• Deserts, mountains, valleys, and plateaus

What is the measure of all salts dissolved in water?

• Viscosity

• Density

• Conductivity

• Salinity

What causes ocean currents like the Gulf Stream?

• Underwater volcanoes

• Wind patterns and temperature differences

• Tides

• Earth's rotation

What do floating organisms such as algae serve as in the ocean?

• Producers

• Predators

• Decomposers

• Consumers

What affects the mixing of ocean waters and can affect plant and animal populations?

• Tides

• Underwater earthquakes

• Ocean currents

• Volcanic eruptions

What is the depth of the ocean trenches compared to the continental shelf?

• Trenches are at the same depth

• Trenches are shallower

• Trenches are deeper

• Trenches have no depth

What are marine organisms dependent on for survival?

• Dissolved gases

• High pressure

• Acidic water

• Solid particles

What do organisms in the ocean environment play a role in?

• Atmospheric circulation

• Tectonic plate movement

• Ocean food chains

• Ocean floor erosion

What affects navigation routes in the ocean?

• Underwater caves

• Magnetic fields

• Ocean currents

• Icebergs