The correct answer is - d. colder and denser.
The main differences between the surface currents and deeper currents are the temperature and density, and that actually decides their position in the water, on the surface, or deeper.
The surface currents are warmer, and because they are warmer the molecules are much more loose, so the density is lower, which in return makes it easier, thus it is in the surface.
The deeper currents are colder, and because they are colder the molecules are much closer and more concentrated, so the density is higher, which means that they are heavier, thus fall deeper below the easier currents.
Answer:
Aurora, luminous phenomenon of Earth's upper atmosphere that occurs primarily in high latitudes of both hemispheres; auroras in the Northern Hemisphere are called aurora borealis, aurora polaris, or northern lights, and in the Southern Hemisphere aurora australis, or southern lights.
Explanation:
Answer:
V. Moderate
IV–V falls within the range of
4.0–4.9 so we put at 4.9
Explanation:
This V. Moderate earthquake is the type felt by nearly everyone, with many people awakened. Some dishes and windows are usually broken, and unstable objects are overturned such as books in a bookcase. Pendulum clocks may also stop.
Occurs when new oceanic crust forms at mid ocean ridge and old crust moves away from the ridge. Magma, Lava. Molten rock or _____ rises from the mantle through cracks in the crust. It erupts as ____ from volcanic vents along the mid ocean ridge.
