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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“The southern portion of the Pacific coast—particularly southern California—can be influenced by maritime tropical air masses, abbreviated mT. These warm, moist air masses originate in the subtropical Pacific Ocean. They may bring fog or low clouds with them.”
Answer: A pluton. If the pluton is large, it is called a batholith or stock.
Explanation: