Oceanography and Underwater Phenomena Quiz

Explore oceanography with questions on currents, marine life, and geological formations. Test yourself now!

#1

Which ocean is the largest by surface area?

Atlantic Ocean
Indian Ocean
Arctic Ocean
Pacific Ocean
#2

What is the primary driver of ocean currents?

Wind
Gravity
Seafloor topography
Temperature gradients
#3

Which of the following oceanic features is characterized by a circular current system with calm waters at its center?

Rip current
Tidal bore
Eddy
Whirlpool
#4

Which of the following is NOT a primary factor affecting tides?

Gravity
Wind
Moon
Sun
#5

Which of the following is NOT a major ocean basin?

Atlantic Ocean
Arctic Ocean
Mediterranean Ocean
Indian Ocean
#6

What is the name for the phenomenon where warm ocean currents meet cold ocean currents?

Ocean convergence
Thermohaline circulation
Upwelling
Oceanic mixing
#7

Which underwater feature is formed by the accumulation of coral polyps?

Atoll
Seamount
Mid-ocean ridge
Trench
#8

Which of the following is not a type of marine pollution?

Oil spills
Noise pollution
Thermal pollution
Volcanic ash deposition
#9

What is the name for the boundary where two tectonic plates move apart, leading to volcanic activity and seafloor spreading?

Subduction zone
Transform fault
Divergent boundary
Convergent boundary
#10

What is the name for the phenomenon where warm surface waters move away from the equator, carrying heat toward the poles?

El Niño
La Niña
Ekman transport
Thermohaline circulation
#11

What is the name for the process of converting seawater into freshwater?

Desalination
Salination
Filtration
Condensation
#12

Which underwater topographical feature is the deepest known point in the Earth's seabed?

Mid-ocean ridge
Seamount
Trench
Guyot
#13

Which gas dissolved in seawater contributes to ocean acidification?

Carbon dioxide
Oxygen
Nitrogen
Hydrogen sulfide
#14

What is the term for the zone where oceanic and continental plates collide, resulting in the denser oceanic plate being forced beneath the lighter continental plate?

Transform fault
Ridge
Trench
Subduction zone
#15

What is the term for the phenomenon where the sun's rays reach the Earth's surface at a more direct angle, causing increased heating and temperature variation?

Thermocline
Equinox
Solstice
Insolation

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