Earth's mantle has kept contributing to the Earth's atmosphere through a process called degassing. During this process, gases are emitted from the magma in the mantle and are transferred into the atmosphere through tectonic procedure such as ocean ridge spreading and volcanism.
I think that the answer is c, ridges!
Subsoil: This layer has normally less organic matter than the A horizon, so its colour is mainly derived from iron oxides. Iron oxides and clay minerals accumulate as a result of weathering. In a soil, where substances move down from the topsoil, this is the layer, where they accumulate.
Note: This information has been taken out of a website.
There are so many building so when the earth is shook, all the building come crumbling down. many people where killed from this
When oceanic or continental plates slide past each other in opposite directions<span>, or </span>move<span> in the same </span>direction<span> but at different speeds, a transform fault boundary is formed.</span>
