Unit 6: Bathymetry Test

How do satellites indirectly measure ocean bathymetry?

• By measuring water temperature differences

• By detecting gravitation bulges in the sea surface

• By scanning the seafloor with radar

• By measuring ocean wave patterns

What scientific theory did improve bathymetric measurements in the 1960s help confirm?

• Theory of Evolution

• Plate Tectonics

• Big Bang Theory

• Cell Theory

Tags

NGSS.HS-ESS1-5

Why are passive margins typically wider than active continental margins?

• They experience more volcanic activity

• They have stronger ocean currents

• They lack tectonic activity and major disturbances

• They are younger in geological age.

What makes the continental rise a unique transition zone?

• It contains both continental and oceanic crust

• It has the highest biodiversity

• It experiences the strongest currents

• It has the most volcanic activity

How did the HMS Challenger expedition change our understanding of the ocean floor?

• It discovered new marine species

• It proved the ocean was not flat

• It measured the deepest point in the ocean

• It discovered plate tectonics

What characteristics of graded bedding in turbidite deposits indicates their origins?

• Coarse materials at the bottom, fining upward

• Equal-sized particles throughout

• Fine materials at bottom, coarsening upward

• Random particles distribution

Tags

NGSS.MS-ESS2-2

This instrument emits a high-frequency sound beam to measure the depth of the ocean developed in the 1950s is the .

• GLORIA

• Precision Depth Recorder (PDR)
• Seambeam

• SeaMARC

Tags

NGSS.MS-PS4-2

The method that used most frequently to investigate sediment and rock layers of the sea floor is .

• Direct Observation

• Drilling

• Satellite Observation

• Seismic Reflecting Profiling

Tags

NGSS.MS-ESS2-3

An echosounder sends a sound signal called a(n) .

• Echo

• Ping
• Beep

• Chirp

The first recorded attempt to measure the ocean’s depth was conducted in the .

• Pacific

• Atlantic
• Red Sea

• Mediterranean Sea