GEOG 1113L Lab 9: Oceans & Coasts Quiz WITH Answers 100% PASS-
GSU
1. What is the average salinity of the world’s oceans in parts per thousand?
A. 3.5 ppt
B. 350 ppt
C. 35 ppt
D. 15 ppt
Answer: C
Rationale: The average salinity of the ocean is approximately 35 parts per thousand (ppt),
which is equivalent to 3.5% salt content.
2. Which process is the primary driver of deep ocean thermohaline circulation?
A. Variations in water density
B. Surface wind patterns
C. The Coriolis effect
D. Gravitational pull of the sun
Answer: A
Rationale: Thermohaline circulation is driven by differences in density, which are
controlled by temperature (thermo) and salinity (haline).
,3. The highest point of a wave is referred to as the:
A. Trough
B. Fetch
C. Period
D. Crest
Answer: D
Rationale: The crest is the highest part of a wave, while the trough is the lowest part.
4. What is the horizontal distance between two consecutive wave crests?
A. Wave frequency
B. Wave height
C. Amplitude
D. Wavelength
Answer: D
Rationale: Wavelength is defined as the distance between two successive similar points on
a wave, such as from crest to crest.
5. The distance of open water over which the wind blows in a single direction to
create waves is called:
A. Fetch
B. Swell
C. Breaker zone
D. Wave base
Answer: A
Rationale: Fetch is the uninterrupted distance over which wind blows without a change in
direction.
, 6. During which moon phases do spring tides occur?
A. First and third quarters
B. Full and new moon
C. Waxing and waning gibbous
D. During solar eclipses only
Answer: B
Rationale: Spring tides occur when the Earth, Moon, and Sun are aligned, which happens
during full and new moons, resulting in the highest tidal ranges.
7. Which type of tide is characterized by two high tides and two low tides of
roughly equal height each day?
A. Diurnal
B. Neap tide
C. Mixed semidiurnal
D. Semidiurnal
Answer: D
Rationale: Semidiurnal tides have two high and two low waters each day with relatively
small differences in height.
8. Neap tides occur when the moon and sun are at what angle relative to Earth?
A. 180 degrees
B. 0 degrees
C. 90 degrees
D. 45 degrees
Answer: C
Rationale: Neap tides occur when the gravitational pulls of the moon and sun are at right
angles (90 degrees) to each other, minimizing the tidal range.
GSU
1. What is the average salinity of the world’s oceans in parts per thousand?
A. 3.5 ppt
B. 350 ppt
C. 35 ppt
D. 15 ppt
Answer: C
Rationale: The average salinity of the ocean is approximately 35 parts per thousand (ppt),
which is equivalent to 3.5% salt content.
2. Which process is the primary driver of deep ocean thermohaline circulation?
A. Variations in water density
B. Surface wind patterns
C. The Coriolis effect
D. Gravitational pull of the sun
Answer: A
Rationale: Thermohaline circulation is driven by differences in density, which are
controlled by temperature (thermo) and salinity (haline).
,3. The highest point of a wave is referred to as the:
A. Trough
B. Fetch
C. Period
D. Crest
Answer: D
Rationale: The crest is the highest part of a wave, while the trough is the lowest part.
4. What is the horizontal distance between two consecutive wave crests?
A. Wave frequency
B. Wave height
C. Amplitude
D. Wavelength
Answer: D
Rationale: Wavelength is defined as the distance between two successive similar points on
a wave, such as from crest to crest.
5. The distance of open water over which the wind blows in a single direction to
create waves is called:
A. Fetch
B. Swell
C. Breaker zone
D. Wave base
Answer: A
Rationale: Fetch is the uninterrupted distance over which wind blows without a change in
direction.
, 6. During which moon phases do spring tides occur?
A. First and third quarters
B. Full and new moon
C. Waxing and waning gibbous
D. During solar eclipses only
Answer: B
Rationale: Spring tides occur when the Earth, Moon, and Sun are aligned, which happens
during full and new moons, resulting in the highest tidal ranges.
7. Which type of tide is characterized by two high tides and two low tides of
roughly equal height each day?
A. Diurnal
B. Neap tide
C. Mixed semidiurnal
D. Semidiurnal
Answer: D
Rationale: Semidiurnal tides have two high and two low waters each day with relatively
small differences in height.
8. Neap tides occur when the moon and sun are at what angle relative to Earth?
A. 180 degrees
B. 0 degrees
C. 90 degrees
D. 45 degrees
Answer: C
Rationale: Neap tides occur when the gravitational pulls of the moon and sun are at right
angles (90 degrees) to each other, minimizing the tidal range.
