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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Answer:
Option D, Oil forms because of geologic heat and pressure and can be found around the world in varying amounts.
Explanation:
Oil existing beneath the earth surface is primarily due to the deposition of organic matter millions of years ago with in the deep earth crust.
This deposition was uneven. With the temperature and pressure, the organic matter converted into fossil fuel (oil, coal etc.)
Hence, option D is correct
the economy of Japan is a highly developed and market-oriented economy. It is the third-largest in the world by nominal GDP and the fourth-largest by purchasing power parity (PPP). ... Due to a volatile currency exchange rate, Japan's GDP as measured in dollars fluctuates widely.
so the answer would be C. it is sa highly developed economy