Concept 1 Quiz

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Explore the oceans and features of our "Blue Planet," including the techniques used to learn more about the ocean floor.

This activity contains 10 questions.

Approximately ____________ percent of Earth's area is represented by oceans and marginal seas.

	50
	60
	70
	80
	none of the above

	Because it has many shallow adjacent seas, the Pacific Ocean is the shallowest of the three major oceans.

	True False

	Multibeam sonar is used to obtain a profile of a narrow strip of seafloor.

	True False

Which of the following disciplines contributes to our understanding of the oceans?

chemistrygeologyphysicsbiologyall of the above

Which of the following ocean basins is predominantly in the Southern Hemisphere?

IndianArcticPacificAtlanticnone of the above

The Southern Hemisphere is often referred to as the _________ hemisphere.

arcticwateroldpolar bearland

	Multibeam sonar uses satellite measurements to profile the bathymetry of the ocean.

	True False

Which of the following techniques is most appropriate for studying rock structures and the subsurface of the ocean floor?

echo soundersdepth chargessatellitesmultibeam sonarradar altimetry

	The average depth of the ocean is double the average land elevation of the continents.

	True False

Radar altimetry can be used to produce detailed ocean-floor maps because

we can use computers to correct for waves and other surface motionswe have satellites equipped with altimetersmicrowaves reflect off the water to measure the sea surfacesea surface variations mimic ocean featuresall of the above

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Concept 1 Quiz

Approximately ____________ percent of Earth's area is represented by oceans and marginal seas.

Because it has many shallow adjacent seas, the Pacific Ocean is the shallowest of the three major oceans.

Multibeam sonar is used to obtain a profile of a narrow strip of seafloor.

Which of the following disciplines contributes to our understanding of the oceans?

Which of the following ocean basins is predominantly in the Southern Hemisphere?

The Southern Hemisphere is often referred to as the _________ hemisphere.

Multibeam sonar uses satellite measurements to profile the bathymetry of the ocean.

Which of the following techniques is most appropriate for studying rock structures and the subsurface of the ocean floor?

The average depth of the ocean is double the average land elevation of the continents.

Radar altimetry can be used to produce detailed ocean-floor maps because