In Plate Tectonic Theory, the lithosphere is broken into tectonic plates, which undergo some large scale motions. The boundary regions between plates are aptly called plate boundaries. Based upon their motions with respect to one another, these plate boundaries are of three kinds: divergent, convergent, and transform.
Mineral Resources
Almost all Earth materials are used by humans for something. We require metals for making machines, sands and gravels for making roads and buildings, sand for making computer chips, limestone and gypsum for making concrete, clays for making ceramics, gold, silver, copper and aluminum for making electric circuits, and diamonds and corundum (sapphire, ruby, emerald) for abrasives and jewelry.
In this discussion, we hope to answer the following questions:
What constitutes a mineral resource and an ore?
What determines whether or not a mineral sources is economical to exploit?
By what processes do ores form?
How are mineral resources found and exploited?
What happens when a mineral resource become scarce as a result of human consumption?
What are the adverse effects of exploiting mineral resource. Mineral resources can be divided into two major categories - Metallic and Nonmetallic. Metallic resources are things like Gold, Silver, Tin, Copper, Lead, Zinc, Iron, Nickel, Chromium, and Aluminum. Nonmetallic resources are things like sand, gravel, gypsum, halite, Uranium, dimension stone.
A mineral resource is a volume of rock enriched in one or more useful materials. In this sense a mineral refers to a useful material, a definition that is different from the way we defined a mineral back in Chapter 5. Here the word mineral can be any substance that comes from the Earth.
Slope of AB is 1.33
I hope that helped
Discoid-cleoid carver is useful for carving occlusal surfaces. Thus, option C is correct.
<h3>What are occlusal surfaces? </h3>
Occlusal surfaces are the term that is used to chew the food in this it is the top half of teeth that are used to chew or bite the food. And this part of the teeth is usually the part where one brushes the teeth.
Cleoid Discoid carvers are dentist's tools used during early rehabilitation to eliminate excess content and sculpt anatomical characteristics. This device is utilized to trim extra composite material. Therefore, option C is the correct option.
Learn more about occlusal surfaces, here:
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