It is common for caves within the Earth to be formed of chemical sedimentary rocks. Evaporites, a special type of chemical sedimentary rock that include halite and gypsum, form as sediments, and are left behind when water in the original solution evaporates. To unlock this lesson you must be a Study.com Member.
People generally know the aurora borealis by their common name, the Northern Lights. The northern lights are natural phenomena that occur in nature. Often on a clear, dark night in the boreal forest, green, purple, pink, and white lights dance on the horizon changing their shape and color. It is perhaps one of natureâ¢s most fascinating displays of artistry. Specifically, the aurora borealis is Latin for ï¬northern dawn.ï¬ The aurora australis is the same phemonena in the southern hemisphere, most visible from Antarctica, Australia, and New Zealand.
An aurora, sometimes referred to as a polar light, is a natural light display in the sky, predominantly seen in the high latitude (Arctic and Antarctic) regions.