ASTRONOMY

Astronomy

Astronomy

The structure of the large planet with twice the mass of the earth planet is fairly simple to understand. Just as the atmosphere has layers, the upper layers of the Earth have layers. If you look at the outside of the planet, you can see that about 65% of the planet is covered by oceans of water. The rest of the 35% of the surface is made up of the continents. (Britt, 2004)

Let's look at the ocean zone first. Scientists break the floor of the ocean into three basic levels. The abyssal plain is the deep ocean floor. The mid-oceanic ridge ...