Oceanography test 2

Diurnal tides have a tidal period of ________.

24 hours and 50 minutes

A full lunar tidal cycle is :

24 hours and 50 minutes in duration

Sediment is supplied to the coastal zone by:

All of the above are sources of sediment in the coastal zone.

Which of the following is designed to prevent or retard shoreline erosion?

All of these are used to try to prevent or retard shoreline erosion.

The basic building blocks of all matter are called:

Atoms

What does the CCD stand for?

Carbonate Compensation Depth

Which of the following is not an environmental condition for calcareous zones?

Cool surface water temperature

What type of bonding is there within a water molecule (H2O)?

Covalent

Which of the following statements about Grunion is correct?

Grunion are the only marine fish that comes completely out of water to spawn.

Atoms that have lost or gained one or more electrons is called

Ions

May of the unique properties of water are attributed to the fact that water:

Is a polar molecule

Abyssal clay is an example of which of the following sediment types?

Lithogenous Sediment

_______ deposits are found on continental shelves and in shallow water near islands, whereas, _______ deposits are found in deep ocean basins and are fine grained.

Neritic, pelagic

Which U.S. coast is considered an emerging shoreline?

Pacific Coast

Hydrogen bonds form between neighboring water molecules because of

Polarity of water molecules

Which of the following is the major environmental concern regarding the release of methane from the sea floor to the atmosphere?

Release of large quantities of methane from the ocean causes dramatic effects on global climate.

The covalent bonds between hydrogen and oxygen atoms in a water molecule from as a result of the:

Sharing of electrons between the atoms

The part of the shore that represents the waters edge and migrates back and fourth with the tide is called:

Shoreline

A linear ridge of sediment attached to land at one end might be called a:

Spit

Which is the following is a biogenous sediment?

Stromatolites

Ocean sediments consist of particles that have slowly settled out of the water by which of the following the processes?

Suspension settling

The term referring to the size and shape of sediments particles is _________.

Texture

Which of the following statements about marine sediments is correct?

They record the timing and severity of some global extinction events.

The vertical distance between consecutive high and low tides is called the ________.

Tidal range

A ________ is a deposit of shore area.

beach

Sediments produced by plants and animals in the sea are called:

biogenous

Which type of marine sediments include siliceous and calcareous oozes?

biogenous

Which of the following produces a tidal current?

both ebb tides and flood tides

Where are the thickest marine sediments located?

continental shelf

Which of the following is found at the depositional shore?

deltas

When the tides appear to move water away from shore it is called ________.

ebb tide

Which of the following contains calcium carbonate (CaCO3)?

foraminiferans

The main energy resources associated with marine sediments are petroleum and ________.

gas hydrates

The attraction between Earth and the moon is an example of a ______ force.

gravitational

A spring tide _________.

has very high high tides and very low low tides

Sediments produced because of chemical reactions in seawater are called:

hydrogenous

Eustatic (global) changes in sea level might include:

increased glacial melting due to global warming

High-energy environments are most likely to deposit which one of the following?

large particles such as gravel

Sediment that begins as rocks on continents or islands is called:

lithogenous (terrigenous) sediment

The ancient remains of which of the following, buried before they could decompose, are the source of today's petroleum deposits?

microscopic organisms

a group of two or more atoms held together by mutually shared electrons are called

molecules

Sediments found on continental margins are called:

neritic

The type of marine sediment that forms the thickest deposits worldwide is:

neritic, lithogenous sediment deposits

Neritic (nearshore) deposits cover about how much of the ocean floor?

one quarter

The study of how the ocean, atmosphere, and land have interacted in the past to produce changes in ocean chemistry, circulation, biology, and climate is called ________.

paleoceanography

Sediment texture describes the ________ characteristics of a deposit.

physical

One of the most abundance, chemically stable, and durable minerals in the earths crust is

quartz

Which of the following contains silica (SiO2)?

radiolarians

Which of the following is an example of hard stabilization?

seawalls

The force that creates two simultaneous ocean bulges on opposite sides of Earth, directed toward or away from the Moon, is called the ________ force.

tide-generating

An area that experiences semidiurnal tides will have:

two high tides and two low tides of nearly equal height daily

The Bay of Fundy is well known for which tidal characteristic?

very high tidal range