WorksheetsMarine Science Unit 2 Exam Review
Total questions: 26
Worksheet time: 13mins
The temperature of the deep sea is consistently around:
1°C
2°C
10°C
The thermocline is a layer in the ocean where:
there is a rapid change in temperature
there is a rapid change in salinity
there is a rapid change in density
What causes ice to float on water?
When water freezes, it expands and its density decreases.
When water freezes, it absorbs more hydrogen from the air, increasing its buoyancy.
When water freezes, air is trapped between the hydrogen bonds of water molecules.
When water freezes, it absorbs more oxygen from the air, increasing its buoyancy.
The global ocean circulation system is known as thermohaline circulation because it is influenced by
atmospheric pressure
Earth's rotation
variations in temperature and salinity
La Nina
In an El Nino event, the tradewinds:
become weaker
become stronger
remain unchanged
Downwelling transports surface water to the depths that is abundant in:
marine life
minerals
oxygen
Which statement is accurate?
Ocean currents moving from the equator transport significant heat energy to the poles.
Ocean currents moving from the equator transport significant nutrients to the poles.
Ocean currents moving from the equator transport significant oxygen to the poles.
Strong upwellings occur along coastlines with strong winds (such as Peru), but where else in the ocean can upwellings occur?
Seamounts
Deep sea trenches
Earthquakes
High salinities
Which of the following does NOT significantly influence ocean currents?
Coriolis Effect
Winds
Temperature and Density
Gravitational pull of the Moon
During a new moon, the high tide will be
One of the highest high tides of the month
One of the lowest high tides of the month
If low tide occurs every 12 hours, then the location has a __________ tide.
Diurnal
Semidiurnal
Which of the maps above represents typical conditions in the Pacific Ocean?
Map A
Map B
On the map above, which year might show California and Mexico experiencing some relief from their usual drought conditions?
Map A
Map B
On the world map, which current is known as the Gulf Stream?
Current A
Current B
Current C
Current D
What is the main component of the continental crust?
Granite
Basalt
Sand
Clay
Who proposed the Theory of Continental Drift in 1912?
Alfred Wegener
Charles Darwin
Isaac Newton
Albert Einstein
Where do marine habitats like coral reefs, kelp forests, and seagrass beds typically develop?
Continental Shelf
Continental Slope
Abyssal Plains
Oceanic Ridge
The vast majority of the ocean floor is referred to as the ________
Continental Shelf
Continental Slope
Abyssal Plains
Oceanic Ridge
What is a consequence of a sudden release of energy during an earthquake?
Tsunami
Volcanic eruption
Shifting of tectonic plates
Crustal expansion
Deep-sea vents support marine life by supplying ____
Oxygen
Minerals
Heat
Light
In which year did Alfred Wegener propose the Theory of Continental Drift?
1912
1982
1888
1956
If Santa Claus were to travel during a La Nina year, what would he have to worry about the most?
Heavy rainfall
Warm temperature
Seagulls
Hunters
Which process is primarily responsible for the formation of mid-ocean ridges?
Seafloor spreading
Evaporation
Subduction
Weathering
