Hello! Are you sure you meant 400 cm long? or mi?
The most accurate answer is:
<span>C.
a low life expectancy
This answer is correct because as you can see all of the other answers are high and this one is low </span>
I guess that is the correct answer.
*Chuckles evilly* >:)
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
learn more:
Physical map brainly.com/question/3687554
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