on April 1, 2022
What is the highest rank of sedimentary coal?
Regional SpecificsThe four ranks are: Anthracite: The highest rank of coal. It is a hard, brittle, and black lustrous coal, often referred to as hard coal, containing a high percentage of fixed carbon and a low percentage of volatile matter. Bituminous: Bituminous coal is a middle rank coal between subbituminous and anthracite. What is the highest
on April 1, 2022
What are the 3 types of fossils?
Regional SpecificsScientists categorize fossils into three main groups – impression fossils, trace fossils, and replacement fossils. What are the 3 major ways fossils are formed? Fossils form in five ways: preservation of original remains, permineralization, molds and casts, replacement, and compression. What are the 4 main types of fossils? True form, cast, mold, and trace fossils.
on April 1, 2022
What is the geologic origin of Florida?
Regional SpecificsGeologists estimate the age of the Earth at more than 4.5 billion years. The Florida plateau, which is the platform upon which Florida is perched, was formed about 530 million years ago by a combination of volcanic activity and marine sedimentation during the early Ordovician Period. What is the major rock formation in Florida and
on April 1, 2022
Where do natural magnets come from?
Regional SpecificsMagnets can be made and can be found in their natural form. Natural magnets are from the stone magnetite (loadstone) and were first discovered in the region known as Magnesia (in Greece) nearly 2000 years ago. No matter what type of magnet you have, they all have the property of magnetism. How is a natural
on April 1, 2022
What is Earth’s geosphere?
Regional SpecificsThe geosphere includes all the rocks that make up Earth, from the partially melted rock under the crust, to ancient, towering mountains, to grains of sand on a beach. Both the geosphere and hydrospherehydrosphereA hydrosphere is the total amount of water on a planet. The hydrosphere includes water that is on the surface of the
on April 1, 2022
What is relative age mean?
Regional SpecificsRelative age is the age of a rock layer (or the fossils it contains) compared to other layers. It can be determined by looking at the position of rock layers. Absolute age is the numeric age of a layer of rocks or fossils. Absolute age can be determined by using radiometric dating. Which is an