Ocean study this for three

Abyssal plains are more extensive on the floor of the Atlantic as compared to those on the floor of the Pacific

True

Black smokers are hydrothermal vents that discharge superheated water with high concentrations of metal sulfides.

True

Passive continental margins are characterized by all of the following except:

deep-sea trenches

The separation of the Earth into layers was the result of the:

differing densities of the rock and mineral materials.

continental crust

granite

crust and upper mantle

lithosphere

lower portion of mantle

mesosphere

The time between two successive waves is called the:

period

The correct order of marine provinces from the coast to the mid-ocean ridge is:

shelf, slope, rise, abyssal plain.

Characteristics of active continental margins include all of the following except: Select one: a. volcanic and earthquake activity. b. broad continental shelf. c. chains of islands. d. thin sediment accumulation. e. deep-sea trenches.

B

All of the following are considered part of the continental margin except the: Select one: a. continental rise. b. continental shelf. c. fracture zone. d. continental slope. e. submarine canyon.

C

Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Choose the one option that does not fit the pattern. A. abyssal hill B. guyot C. ridge crest D. sea knoll E. tablemount

C

Earth developed the first ocean by about 4 million years ago.

False

Greater temperature fluctuations are seen in coastal areas due to the marine effect.

False

Hydrothermal vents are seafloor cold seeps with high concentrations of sulfur and salts.

False

Mid ocean ridges are rises that occupy a small portion of the deep ocean basin, only about 10%

False

Seamounts form from ancient tablemounts.

False

The deepest portions of the ocean are part of the relatively narrow features called submarine canyons.

False

Submarine canyons were most likely formed by

erosion by turbidity currents

Submarine canyons were most likely formed by:

erosion by turbidity currents

Passive continental margins are characterized by all of the following except: Select one: a. deep-sea trenches. b. shallow coastal waters. c. very little volcanic and earthquake activity. d. broad continental shelf. e. thick sediment accumulation.

A

Carbon dating is used to determine the absolute age of a rock or fossil.

True

Hydrothermal vents have a significant impact on ocean chemistry.

True

Oceans with passive plate margins have continental slopes with more gradual slopes than oceans with active plate margins

True

Oceans with passive plate margins have continental slopes with more gradual slopes than oceans with active plate margins.

True

Sediments of the continental rise can exhibit characteristics similar to those formed by rivers on land

True

The Pacific Ring of Fire is the seismically active area at the margins of the Pacific plate where earthquakes and volcanoes are common.

True

The broadest continental shelves occur in the Arctic Ocean.

True

Underwater avalanches of muddy water mixed with rocks and debris are

Turbidity currents