A simple stain is used to show that bacteria is present and what they look like opposed to other matter. a differential stain is used to separate organisms into groups.
When plates move away from each other it can cause rift valleys to form.
In areas where the plates come together, sometimes volcanoes will form. Volcanoes can also form in the middle of a plate, where magma rises upward until it erupts on the seafloor, at what is called a “hot spot.” The Hawaiian Islands were formed by such a hot spot occurring in the middle of the Pacific Plate.
Located mainly in zones of crustal activity because these zones are often lithospheric plate boundaries
