#1
Which of the following oceanic zones receives the most sunlight?
Euphotic zone
ExplanationEuphotic zone receives the most sunlight due to its upper layer where photosynthesis can occur.
#2
What is the term for the phenomenon where warm ocean surface waters cause weather changes?
El Niño
ExplanationEl Niño refers to the warming of Pacific Ocean waters, impacting global weather patterns.
#3
What is the name of the process by which water vapor changes into liquid water?
Condensation
ExplanationCondensation is the process where water vapor cools and changes into liquid water.
#4
Which of the following oceanic currents is responsible for bringing warm water from the Gulf of Mexico to the North Atlantic?
Gulf Stream
ExplanationThe Gulf Stream is an oceanic current transporting warm water from the Gulf of Mexico to the North Atlantic.
#5
Which of the following is a characteristic feature of the intertidal zone?
Rich biodiversity
ExplanationThe intertidal zone is characterized by its rich biodiversity, as it experiences periodic exposure and submersion.
#6
What causes the formation of oceanic trenches?
Plate subduction
ExplanationOceanic trenches form due to the subduction of one tectonic plate beneath another.
#7
Which of the following is a primary factor influencing ocean currents?
Water temperature
ExplanationOcean currents are influenced by water temperature, affecting density and flow.
#8
What geological feature is created by the accumulation of coral polyps over time?
Atoll
ExplanationAtoll is formed by the buildup of coral polyps on the rim of a submerged volcanic island.
#9
Which of the following is NOT a type of sediment found on the ocean floor?
Plutogenous
ExplanationPlutogenous is not a type of sediment; it refers to rocks formed from molten material within the Earth.
#10
What is the primary cause of ocean acidification?
Burning fossil fuels
ExplanationOcean acidification is primarily caused by the increased absorption of carbon dioxide from burning fossil fuels.
#11
Which of the following is a driving force for plate tectonics?
Convection currents in the mantle
ExplanationPlate tectonics are driven by convection currents in the Earth's mantle, causing the movement of tectonic plates.
#12
What is the name of the theory that suggests all continents were once part of a single supercontinent?
Pangaea
ExplanationPangaea is the theory proposing that all continents were once connected in a supercontinent and later drifted apart.
#13
What is the name of the process by which sediment is moved along a shoreline?
Longshore drift
ExplanationLongshore drift is the process of sediment movement along a shoreline, influenced by wave action.
#14
Which of the following is a type of marine pollution caused by oil spills?
Oil slicks
ExplanationOil slicks are a type of marine pollution resulting from oil spills in the ocean.
#15
What is the process of sediment settling out of the water called?
Deposition
ExplanationDeposition is the process where sediment settles out of the water and accumulates on the ocean floor.