OCEAN 102 MIDTERM EXAM QUESTIONS AND ANSWERS ALL CORRECT
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Course
OCEAN 102
Institution
OCEAN 102
OCEAN 102 MIDTERM EXAM QUESTIONS AND ANSWERS ALL CORRECT
The large range of uncertainty associated with future sea level rise is attributed to - Answer-uncertainty in future CO2 emissions and future global temperatures
True or False: Hundreds of millions of people are likely to be impacted b...
OCEAN 102 MIDTERM EXAM
QUESTIONS AND ANSWERS ALL
CORRECT
The large range of uncertainty associated with future sea level rise is attributed to -
Answer-uncertainty in future CO2 emissions and future global temperatures
True or False: Hundreds of millions of people are likely to be impacted by sea level rise
of 1 m. - Answer-TRUE
Which of the following is not a likely impact of sea level rise on coastal populations? -
Answer-NOT: More frequent low tides
Likely:
-Contamination of agricultural lands with salty water
-Increased coastal erosion
-Flooding of wetlands
-Contamination of groundwater and drinking water
Which of the following is not a cost of sea level rise? - Answer-All of these are costs of
sea level rise.
-Monetary cost of securing shorelines
- Monetary cost of relocating people from flooded cities or villages.
- Loss of agricultural lands.
- Loss or degradation on fresh drinking water
Island nations like Tuvalu and the Maldives are especially vulnerable to sea level rise
because: - Answer-The average elevation of the islands is only a few feet above sea
level
Examples of evidence of sea level rise in Tuvalu include which of the following? -
Answer-All of these are evidence of sea level rise in Tuvalu :
-Crop damage
-Tide gauge data
-Sea water bubbling up through lands along shore during high tide
- Memories and stories of the residents of Tuvalu
Arctic sea ice provides all of the following ecosystem functions except: - Answer-Source
of pristine drinking water
IT DOES:
, -Habitat for large mammals like polar bears
-Dampens waves so storms don't erode shorelines
-Deflects sunlight due the high reflectivity of ice
Inuits use sea ice for all of the following except - Answer--Boats
USE IT FOR: Travel, Hunting, Protection from storms
True or False: The commercial shipping industry would suffer from an ice-free Arctic
because the shipping route between the North Pacific and North Atlantic would be much
longer - Answer-FALSE
True or False? Temperature and salinity of water is constant at all depths in the ocean. -
Answer-FALSE
True or False? Dissolved nutrient and gas concentrations are constant at all depths in
the ocean - Answer-FALSE
True or False? Surface water can hold more gas than deep water because it is under
high atmospheric pressure - Answer-FALSE
Sources of salts to the oceans include all of the following except - Answer-Respiration
Sources include:
-River runoff from land
-Volcanic events on land
-Weathering of rocks
-Volcanic events on the seafloor
Which water condition would gases be most soluble in? - Answer-Cold and fresh
Layering of water masses is known as ___________? - Answer-stratification
The thermocline is a rapid change in __________ with water depth in the ocean -
Answer-temperature
The pycnocline is a rapid change in __________ with water depth in the ocean -
Answer-density
During which season is the mixed layer usually the deepest - Answer-winter
The depth of light penetration in the ocean depends on the - Answer-All of these;
- concentration of phytoplankton in surface waters
-amount of suspended sediment in the water column
-concentration of dissolved organic material in the water column
The term euphotic zone refers to the layer of the ocean in which - Answer-light
penetrates the water so photosynthesis can occur
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