Marine Science 111 Lab Exam Questions
with Correct Answers
T/F: the alligator pond site is considered to be tidally influenced - Answer-False
T/F: The D.O. content at the marsh site is influenced by the physical mixing of the
waves crashing - Answer-False
T/F: Evaporation of seawater will cause a decrease in salinity in that water - Answer-
False
T/F: The process of photosynthesis will increase the D.O. in water - Answer-True
T/F: The marsh site is to be considered tidally influenced - Answer-True
Which field site would have the most D.O. due to the process of physical mixing?
a) Pond
b) Marsh
c) Ocean - Answer-c) Ocean
What would cause the color of the water to be greenish or yellowish green?
a) Sediment
b) Pollution
c) Phytoplankton - Answer-c) Phytoplankton
What would cause the color of the water to be brownish?
a) Sediment
b) Phytoplankton
c) Cyanobacteria - Answer-a) Sediment
What is the name of the field instrument we used to take the salinity, D.O. and the
temperature of the water at each location?
a) SSI
b) WiFi
c) YSI
d) Refractometer - Answer-c) YSI
What was the name of the hand held field instrument we used to take just salinity of the
water at each location?
a) SSI
b) WiFi
c) YSI
d) Refractometer - Answer-d) Refractometer
, What is the name of the dominant plant found in the marsh?
a) Cordgrass or (Spartina alterniflora)
b) Live Oaks (Quercus virginiana)
c) Red Maple (Acer rebrum) - Answer-a) Cordgrass (Spartina alterniflora)
2 species off birds for the HBSP - Answer-White egrets and Blue herron
Name the main flora (plant) that we saw covering the dunes - Answer-Seaoats
Explain why the marsh might see a lower D.O. than the other 2 sites. - Answer-
Crest - Answer-top of the wave
Trough - Answer-bottom of the wave
Amplitude - Answer-top of wave to flat part of wave
Wavelength - Answer-distance from crest to crest or trough to trough
Wave Height - Answer-distance from crest to trough
Define wave period - Answer-the time it takes for one wave to go past one consecutive
point
When the water depth is less than 1/20th of the wavelength we classify these waves
as..
a) Deep water waves
b) Shallow water waves
c) Intermediate waves
d) Seismic waves - Answer-b) Shallow water waves
The equation C=L/T, describes:
a) Amplitude
b) Wave Speed
c) Circular Motions
d) Wave Height - Answer-b) Wave Speed
As water depth decreases, the celerity of the wave..
a) Increases
b) Stays the same
c) Decreases - Answer-c) Decreases
___________ are structures built to prevent or reduce sediment deposition at the
mouths of harbors or inlets..
a) Seawalls
b) Groins
with Correct Answers
T/F: the alligator pond site is considered to be tidally influenced - Answer-False
T/F: The D.O. content at the marsh site is influenced by the physical mixing of the
waves crashing - Answer-False
T/F: Evaporation of seawater will cause a decrease in salinity in that water - Answer-
False
T/F: The process of photosynthesis will increase the D.O. in water - Answer-True
T/F: The marsh site is to be considered tidally influenced - Answer-True
Which field site would have the most D.O. due to the process of physical mixing?
a) Pond
b) Marsh
c) Ocean - Answer-c) Ocean
What would cause the color of the water to be greenish or yellowish green?
a) Sediment
b) Pollution
c) Phytoplankton - Answer-c) Phytoplankton
What would cause the color of the water to be brownish?
a) Sediment
b) Phytoplankton
c) Cyanobacteria - Answer-a) Sediment
What is the name of the field instrument we used to take the salinity, D.O. and the
temperature of the water at each location?
a) SSI
b) WiFi
c) YSI
d) Refractometer - Answer-c) YSI
What was the name of the hand held field instrument we used to take just salinity of the
water at each location?
a) SSI
b) WiFi
c) YSI
d) Refractometer - Answer-d) Refractometer
, What is the name of the dominant plant found in the marsh?
a) Cordgrass or (Spartina alterniflora)
b) Live Oaks (Quercus virginiana)
c) Red Maple (Acer rebrum) - Answer-a) Cordgrass (Spartina alterniflora)
2 species off birds for the HBSP - Answer-White egrets and Blue herron
Name the main flora (plant) that we saw covering the dunes - Answer-Seaoats
Explain why the marsh might see a lower D.O. than the other 2 sites. - Answer-
Crest - Answer-top of the wave
Trough - Answer-bottom of the wave
Amplitude - Answer-top of wave to flat part of wave
Wavelength - Answer-distance from crest to crest or trough to trough
Wave Height - Answer-distance from crest to trough
Define wave period - Answer-the time it takes for one wave to go past one consecutive
point
When the water depth is less than 1/20th of the wavelength we classify these waves
as..
a) Deep water waves
b) Shallow water waves
c) Intermediate waves
d) Seismic waves - Answer-b) Shallow water waves
The equation C=L/T, describes:
a) Amplitude
b) Wave Speed
c) Circular Motions
d) Wave Height - Answer-b) Wave Speed
As water depth decreases, the celerity of the wave..
a) Increases
b) Stays the same
c) Decreases - Answer-c) Decreases
___________ are structures built to prevent or reduce sediment deposition at the
mouths of harbors or inlets..
a) Seawalls
b) Groins
