Standard 10: Oceans

Which two statements in the table are true about the changing salt concentrations of ocean water?

• 1 and 3

• 1 and 4

• 2 and 3

• 2 and 4

Which best explains how nutrients, salt, sediment, and pollutants get into estuaries and the ocean?

• from precipitation falling over the estuaries and oceans

• from organisms living and dying in estuaries and oceans

• from rivers and streams flowing into estuaries and oceans

• from asteroids and comets impacting earth at estuaries and oceans

What contributes most in supporting life on the deep ocean floor?

• cold water temperatures

• extreme water pressure

• hydrothermal vents

• lack of predators

In which location would fishermen most likely catch a greater number of fish?

• at the shoreline

• in an upwelling zone

• in the intertidal zone

• on the deep ocean floor

Which best describes the shallow water ocean zone?

• the long water column protects small organisms from being eaten by large predators

• cooler water temperatures cause a decrease in dissolved oxygen needed by organisms

• sunlight penetration increases algae growth and provides food for a variety of organisms

• hydrothermal vents provide heat and dissolved minerals needed by some organisms to survive

How is the amount of oxygen in ocean water affected by temperature? 

• the amount of oxygen in ocean water increases as temperature increases

• the amount of oxygen in ocean water increases as temperature decreases

• the amount of oxygen in ocean water decreases and temperature decreases

• the amount of oxygen in ocean water is kept constant as temperature decreases

Which would most likely be discovered by researchers exploring the deep ocean with remotely  operated vehicles (ROVs)?

• a new terrestrial species

• a new phytoplankton species

• a new photosynthetic species

• a new chemosynthetic species

In which oceanic zone do clams and crabs survive by burrowing in the sand?

• oceanic

• intertidal

• deep ocean

• open ocean

Which issue do submersible vehicles overcome while exploring and studying the deep ocean in the Abyss?

• high waves

• increased salinity

• high water pressure

• underwater mountain ranges

Which ocean zone is the most difficult to live in due to constant temperature changes, high tides/low tides, and changing in salinity levels?

• Intertidal Zone

• Neritic Zone

• Oceanic Zone

• Estuary