Ocean Quiz (1)

Question 1

What is Sonar?

Answer 1

A device used for echo and the velocity of sound in water

Question 2

What is a satellite?

Answer 2

Technology used to scan the ocean’s surface

Question 3

What is a submersible?

Answer 3

An underwater vehicle that investigates the deepest parts of the ocean

Question 4

What is Side-Scan Sonar?

Answer 4

A technique used to detect sound waves to the sea floor at an angle so that the sides of different topographic features are mapped

Question 5

How much water does the ocean contain?

Answer 5

97% of the Earth’s water

Question 6

What is Global Sea Level?

Answer 6

Is the level of the ocean’s surface

Question 7

Why has sea level risen and fallen over time?

Answer 7

Melting Ice
Tectonic Forces
Expanding Glaciers

Question 8

How much of Earth’s surface is covered by the ocean?

Answer 8

71%

Question 9

How much of the Northern hemisphere is covered by oceans?

Answer 9

61% because most of the Earth’s landmasses are there

Question 10

How much of the Southern hemisphere is covered by oceans?

Answer 10

81% because less landmasses are there

Question 11

What are the three largest oceans?

Answer 11

Pacific (Largest)
Atlantic
Indian (Smallest)

Question 12

What is ice-crystal slush?

Answer 12

It develops at the surface of the water and eventually solidifies

Question 13

When ice slush solidifies into indiviual round pieces it is called?

Answer 13

Pack Ice

Question 14

Where do ice sheets come from?

Answer 14

Pancake Ice

Question 15

What is pancake Ice?

Answer 15

A thick cover of expanding ice

Question 16

What is the closest sea to CCS?

Answer 16

Gulf of Mexico

Question 17

What is the solution of seawater?

Answer 17

96.5%-water
3.5%-dissolved salts

Question 18

What is the most abundant salt in seawater?

Answer 18

Sodium Chloride

Question 19

Because these substances are dissolved they can form into…

Answer 19

Ions

Question 20

What is salinity?

Answer 20

Is a measure of the amount of salts in seawater

Question 21

Chlorine and Sulfur dissolve in?

Answer 21

Water

Question 22

How are organisms influencing the reduce or spread of ions?

Answer 22

Marine organisms reduce the ions from seawater to build shells, teeth, and bones

Question 23

What is freshwater’s maximum density?

Answer 23

1.00 cm

Question 24

Why is seawater denser than freshwater?

Answer 24

The salt ions are heavier than water molecules

Question 25

Light sufficient for photosynthesis exists only in the top what meters of the ocean?

Answer 25

100 m

Question 26

What is the thermocline?

Answer 26

Layer between the surface and bottom layer and it gets the second to least amount of sunlight.

Question 27

What are the ocean layers?

Answer 27

Surface Thermocline Bottom

Question 28

Antarctic Bottom Water North Atlantic Deep Water Antarctic Intermediate Water

Answer 28

1.When Antarctic seas freeze during the winter 2.Same thing but off the coast of Greenland 3.When salty waters of the Antarctic become cold and sink

Question 29

What is a wave?

Answer 29

A rhythmic movement that carries energy through space or matter

Question 30

What kind of pattern do ocean waves go through?

Answer 30

Circular

Question 31

What is a crest? What is a trough?

Answer 31

Highest point of a wave Lowest point of a wave

Question 32

What is the vertical distance of a wave? What is the horizontal distance of a wave?

Answer 32

Amplitude/Height Wavelength

Question 33

What does the wavelength determine?

Answer 33

Wave Base

Question 34

What does wave height depend on?

Answer 34

Wind speed, wind duration, and fetch

Question 35

What is fetch?

Answer 35

The expanse of water that the wind blows across

Question 36

What are breakers?

Answer 36

Are waves where the crests collapse forward when the waves become higher

Question 37

What are tides?

Answer 37

The periodic rise and fall of the sea

Question 38

Why does the tidal range change?

Answer 38

Differences in topography

Question 39

What are the basic causes of tides?

Answer 39

Gravitational attraction among Earth, the moon and the sun

Question 40

Why are lunar tides more high than the other ones?

Answer 40

The moon is closer to the Earth

Question 41

What are Solar Tides? What are Spring Tides?

Answer 41

They can either enchance or diminish lunar tides Occur when the sun, moon and earth are aligned

Question 42

What happens to a density current?

Answer 42

It moves slower

Question 43

What are surface currents?

Answer 43

They are wind-driven that affect the ocean

Question 44

What are the five major gyres?

Answer 44

North Pacific, North Atlantic, South Pacific, South Atlantic, Indian Ocean

Question 45

What are deep ocean currents driven by?

Answer 45

Gravity and Density

Question 46

What are the two factors that are important in creating a dense mass of moving water?

Answer 46

Tempature Salinity

Question 47

What is deep ocean circulation referred to as?

Answer 47

Thermohaline

Question 48

What is upwelling?

Answer 48

Is the upward motion of ocean water