Chapter 13 Test Notes

Question 1

True or False:
The oceans are the source of most of Earth’s atmospheric oxygen.

Answer 1

True

Question 2

True or False:
Ther is only one ocean

Answer 2

True

Question 3

True or False:
The ocean’s surface makes the earth into a smooth sphere.

Answer 3

False

Question 4

True or False:
The beach is broader than the shore at a given location.

Answer 4

True

Question 5

True or False:
Geologists recently estimated that there could be around 25 million extinct volcanic seamounts taller than 100m. This large number suggests that underwater volcanism must have been significant in the past.

Answer 5

True

Question 6

True or False:
According to young-earth geologic history, existing coral reefs probably developed after the Flood.

Answer 6

True

Question 7

True or False:
The fish kinds found in landlocked lakes today must have originally been ocean fish that survived the Flood

Answer 7

True

Question 8

True or False:
Seawater is 3.5% sodium chloride and 96.5% water.

Answer 8

False

Question 9

True or False:
The Dead Sea has a high salinity because the water entering from the Jordan River is even saltier

Answer 9

False

Question 10

True or False:
The freezing point of seawater decreases as salinity increases

Answer 10

True

Question 11

True or False:
A sound velocity profile displays how speed changes with temperature

Answer 11

False

Question 12

True or False:
Marine organisms in the littoral zone are not protected from occasional significant changes to their environment

Answer 12

True

Question 13

What changes with seasons to form a thermal layer?

Answer 13

Temperature

Question 14

What is 1.028 g/mL at normal conditions?

Answer 14

Density

Question 15

What is lowered by increasing water’s saltiness?

Answer 15

Melting/freezing point

Question 16

What can reach up to 1100 atm in the Challenger Deep?

Answer 16

Pressure

Question 17

What is the measure of the ocean’s saltiness?

Answer 17

Salinity

Question 18

What is essential for echolocation?

Answer 18

Speed of Sound

Question 19

True or False:
The only substance dissolved in seawater is salt.

Answer 19

False

Question 20

A longshore bar is associated with which ocean basin region?

Answer 20

beach

Question 21

A feature found in continental slopes that was likely craved by runoff water from the flood is an______________________?

Answer 21

Submarine Ridge

Question 22

An underwater feature that forms at divergent tectonic plate boundaries is an_______________?

Answer 22

Mid-Ocean Ridge

Question 23

What is the correct name for a submerged volcano?

Answer 23

Seamounts

Question 24

The Challenger Deep is associated with this type of feature.

Answer 24

Trenches

Question 25

True or False:
Sea level is the same elevation everywhere on Earth.

Answer 25

False

Question 26

This area of the open ocean has a relatively constant salinity and good water clarity.

Answer 26

Photic Zone

Question 27

This area of the ocean above the continental shelf is similar to the Photic Zone.

Answer 27

Littoral Zone

Question 28

No light from the surface reaches these two zones.

Answer 28

Aphotic and Abyssal Zone

Question 29

Pelagic animals, many bioluminescent, are the only living things here.

Answer 29

Aphotic Zone

Question 30

The only nutrient comes from marine snow.

Answer 30

Abyssal Zone

Question 31

Marine organisms here must be very mobile or have a sturdy design and a good grip on surfaces.

Answer 31

Intertidal Zone

Question 32

Benthic organisms in this area are more likely to be exposed to light from the surface.

Answer 32

Littoral Zone

Question 33

True or False:
The carbon and nitrogen cycles operate only in the ocean.

Answer 33

False

Question 34

Arrange the terms in order from land toward the middle of an ocean basin: beach, slope,shelf,rise, coastal region,abyssal plain

Answer 34

Coastal region; beach; shelf; slope; rise; abyssal plain