NOSB Practice 2

Where does ocean salinity tend to be the highest?

The greatest danger to those few scientists brave enough to dive under Antarctic ice is...?

Seawater in the vicinity of a major phytoplankton bloom is characterized by...

Which seafloor sediment is derived from land?

Lunar orbit precession is responsible for variations in tidal range with a period of 18.6...?

The Beaufort scale uses the condition of the sea to infer...?

What is the average pH value of seawater?

The group of marine animals with the largest number of species threatened or endangered is...?

What percent of teh world's fresh surface water is contained in the Great Lakes?

Which physical property of water prevents extreme variation in the ocean's temperature?

The deep and bottom waters of the ocean are formed:

The epicenters of many large earthquakes have been located near the Aleutian Islands because:

Kelp lacks...

This sediment type is the least prevalent on the ocean seafloor:

What influences wind waves?

The following is usually found near subduction zones:

The interruption of sand supply and the resulting narrowing of beaches is called

The most common way the PCBs affect both fish and humans is in causing...?

A draft of the ship is the...?

In temperate zones the thermocline will be most pronounced during...?

A pycnocline (pik-noh-kline) is a significant change in...?

Fresh water has its maximum density at...

Which one of these is NOT an advantage of fish species spawning at different times of the year?

The sea fans or fan corals belong to the...?

The spring turnover is important in a lake system because...?

The amount of heat required to raise the temperature of a substance 1 degree C is the...?

Groins are structures built mainly to...?

This sediment type is the most common along the equator in the Pacific Ocean.

The greatest declination in the moon is...?

A parasitic fish found in the Great Lakes is the...?

This toxic chemical led to the "walleye scare" of the 1970s

Ships move from Lake Erie to Lake Ontario by...?

The primary process by which nutrients are returned to the surface waters is...?

Half a wave’s height is also referred to as its what?

Montery California was a favorite haunt of the author of "Dr. Jekyll and Mr. Hyde". He was...?

Each time a tidal current changes directions there is a period of no current known as...?

At 1630 Greenwich Mean Time (1630Z) at astronomical noon, what is the location's longitude?

Flat-topped, submerged seamounts are called...

Water's uniqueness results from the water molecule's...?

Which of the following is true of hydrogenous sediments:

Which of the following sediment types has the smallest grain size?

Thick unconsolidated sediments are usually encountered...?

Manganese nodules are...

Side-scanning sonar is towed above the sea floor when seeking out what ocean floor feature?

What dissolved gas in seawater is responsible for maintaining its pH?

A sandy beach is an example of a coastline that was mainly shaped by:

The effect of ebb currents on tides is...?

The composition of sea salts is nearly constant everywhere in the oceans because:

The phylum of marine organisms that uses nematocysts for protection and food gathering is...?

A fjord is an example of a coastline that was mainly shaped by:

Sediment that is comprised of more than 30% of the shells of organisms is known as what?

Corals are most closely related to

Spicules in the phylum Porifera serve as what primitive...?

Which factor indicates the presence of an ocean current?

Tektites are examples of which type of sediment?

One likely result of El Niño is...?

Which of the following occurs along a seashore as a result of a rise in sea level?

If water only absorbed light and did not scatter it, what color would it appear from above?

Lithogenous sediments are found near continents because:

What does "eutrophication" mean in reference to a lake?

Bioluminescence is used for all of the following except...?

Captain James Cook required his crew to eat what to prevent scurvy?

Analyzing tides while accounting for continents and their effect on tides is...?

One of the most important roles of bacteria in marine food webs is: