The Atlantic Ridge has mountains and deep valleys in the hemispheres, north and south.
The East Pacific Rise has no large mountains or valleys because the Pacific Rises oceanic crust is moving away from the east.
Http://history-world.org/islam.htm
This site will provide information, but it changed the entire social order and beliefs, customs and culture of the people.
The inner plants are hotter, rockier, and considered the terrestrial planets.
It protects us from harmful UV rays from the sun.
