Ocean test 2

Question 1

Continental shelf

Answer 1

Flat part of continental marign(covered by shallow water)
-average depth:60 meters
Photic zone

Question 2

Continental slope

Answer 2

Boundary between continental crust and oceanic crust

Question 3

Continental rise

Answer 3

Wedge of sediment that separates slope from floor

Question 4

Abyssal plain

Answer 4

Very flat floor at depths of 3-5Km

Question 5

Mid-ocean ridge

Answer 5

Mountain range on ocean floor due to the floor spreading

Question 6

Trench

Answer 6

Deep narrow valleys along the edge of a subduction zone (90% of trenchs are found in Pacific rim)

Question 7

Seamount

Answer 7

Atolls

• ring shaped island of coral reefs
  
  • formed from sinking inactive volcanoes

Question 8

Continental Margin

Answer 8

Portion of ocean made of the continental crust, made of granite

Question 9

Bacteria

Answer 9

Primary producer found in hydrothermal vents that form the basis of food chain

Synthesizes hydrogen sulfide into energy

Question 10

Chemosynthesis

Answer 10

Process of oxidizing hydrogen sulfide as a source of energy

Question 11

Convergent plates

Answer 11

Destructive plate pushing together

Question 12

Transform plate

Answer 12

Plates that go in opposite directions

Question 13

Divergent plates

Answer 13

Constructive plates that separate and new lava comes through and forms new ground

Question 14

Tsunami

Answer 14

A natural disaster
Four ways its made:
Earthquake
Coastal/submarine landslide(or rockfall)
Submarine volcanic eruption
Extraterrestrial impact

Question 15

Hemoglobin

Answer 15

The plume of a tubeworm is red bc it has that molecule

Question 16

Turbidity currents

Answer 16

Most widely supported theory of origin of submarine canyons

Question 17

Fracture zones

Answer 17

Extensions of transform faults beyond ocean ridge

Question 18

Hydrothermal vents

Answer 18

Structure discovered by alvin in 1977

Question 19

Black smoker

Answer 19

Cooler of the two types of hydrothermal vents that releases silica anhydrite

Question 20

Passive margin

Answer 20

Little seismic activity and large cont. shelf

Question 21

Active margin

Answer 21

Volcanoes earthquakes and subduction zones are in here

Question 22

Bacteria

Answer 22

Primary producer found in hydrothermal vents that form the basis of food chain

Synthesizes hydrogen sulfide into energy

Question 23

Chemosynthesis

Answer 23

Process of oxidizing hydrogen sulfide as a source of energy

Question 24

Convergent plates

Answer 24

Destructive plate pushing together

Question 25

Transform plate

Answer 25

Plates that go in opposite directions

Question 26

Divergent plates

Answer 26

Constructive plates that separate and new lava comes through and forms new ground

Question 27

Tsunami

Answer 27

``` A natural disaster Four ways its made: Earthquake Coastal/submarine landslide(or rockfall) Submarine volcanic eruption Extraterrestrial impact ```

Question 28

Hemoglobin

Answer 28

The plume of a tubeworm is red bc it has that molecule

Question 29

Turbidity currents

Answer 29

Most widely supported theory of origin of submarine canyons

Question 30

Fracture zones

Answer 30

Extensions of transform faults beyond ocean ridge

Question 31

Hydrothermal vents

Answer 31

Structure discovered by alvin in 1977

Question 32

Black smoker

Answer 32

Cooler of the two types of hydrothermal vents that releases silica anhydrite

Question 33

Passive margin

Answer 33

Little seismic activity and large cont. shelf

Question 34

Active margin

Answer 34

Volcanoes earthquakes and subduction zones are in here