The Mohorovicic discontinuity represents
A) the boundary between inner and outer cores
B) the boundary between mantle and crust
C) the boundary between lithosphere and hydrosphere
D) the boundary between outer core and mantle
B
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How come an animal's carbon-14 levels do not start to decrease until it dies?
A) because it constantly replenishes its carbon-14 supply by eating plants with carbon-14 in them B) because it constantly replenishes its carbon-14 supply by breathing air with carbon-14 in it C) because it is constantly being bombarded with cosmic rays D) carbon-14 only starts to decay after the animal dies E) The carbon-14 levels do not decrease because the carbon-13 in its skin protects it from cosmic rays.
Regarding pressure, latitude, and water versus land.
A) Air pressure is high at the equator because the water warms more quickly than the land. B) Air pressure is high over oceans at 30° because descending air warms less over the cool oceans. C) Air at the midlatitudes is forced to sink because of dense air aloft from the subtropics. D) Air at the poles will rise because of the warmer ice sheets compared to the ocean.
In the world map below the color that represents soils that swell and shrink excessively is
A) pink.
B) light green.
C) medium blue.
D) purple.
Ocean-related leisure pursuits, including sport fishing, surfing, diving, day cruising, sunbathing, dining in seaside restaurants, and just plain relaxing contribute to the economy
Indicate whether the statement is true or false