Question

How do topographic maps compare in their representation of continental and ocean-floor topography? A. Both continental and ocean-floor topography are measured relative to the Earth's center. B. Both continental and ocean-floor topography are measured relative to sea level. C. Continental topography is measured relative to sea level, while ocean-floor topography is measured relative to the Earth's center. D. Ocean-floor topography is measured relative to sea level, while continental topography is measured relative to the Earth's center.

Answer 1

B. Both continental and ocean-floor topography are measured relative to sea level

Explanation:

On a topographic map, both continental and ocean-floor topography are measured relative to sea level.

The sea level is the reference surface for the continental and ocean floor topography.

• A topographic map is a map that shows landform using series of contour lines.
• The lines joins places of equal elevation.
• The elevation is usually referenced to the sea level surface.
• The sea level is taken as the surface with 0 depth or height.
• Continental topography is all places above the sea level.
• Ocean floor is below the sea level surface

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