Answer:
The Fourteenth Amendment to the United States Constitution was adopted on July 9, 1868, as one of the Reconstruction Amendments. Arguably one of the most consequential amendments to this day, the amendment addresses citizenship rights and equal protection under the law and was proposed in response to issues related to former slaves following the American Civil War. The amendment was bitterly contested, particularly by the states of the defeated Confederacy, which were forced to ratify it in order to regain representation in Congress. The amendment, particularly its first section, is one of the most litigated parts of the Constitution, forming the basis for landmark decisions such as Brown v. Board of Education regarding racial segregation, Roe v. Wade regarding abortion, Bush v. Gore regarding the 2000 presidential election, and Obergefell v. Hodges regarding same-sex marriage. The amendment limits the actions of all state and local officials, including those acting on behalf of such an official.
Answer:
Mohs hardness, rough measure of the resistance of a smooth surface to scratching or abrasion, expressed in terms of a scale devised (1812) by the German mineralogist Friedrich Mohs. The Mohs hardness of a mineral is determined by observing whether its surface is scratched by a substance of known or defined hardness.
Related Topics: hardness
To give numerical values to this physical property, minerals are ranked along the Mohs scale, which is composed of 10 minerals that have been given arbitrary hardness values. The minerals contained in the scale are shown in the Table; also shown are other materials that approximate the hardness of some of the minerals. As is indicated by the ranking in the scale, if a mineral is scratched by orthoclase but not by apatite, its Mohs hardness is between 5 and 6. In the determination procedure it is necessary to be certain that a scratch is actually made and not just a “chalk” mark that will rub off. If the species being tested is fine-grained, friable, or pulverulent, the test may only loosen grains without testing individual mineral surfaces; thus, certain textures or aggregate forms may hinder or prevent a true hardness determination. For this reason the Mohs test, while greatly facilitating the identification of minerals in the field, is not suitable for accurately gauging the hardness of industrial materials such as steel or ceramics. (For these materials a more precise measure is to be found in the Vickers hardness or Knoop hardness) Another disadvantage of the Mohs scale is that it is not linear; that is, each increment of one in the scale does not indicate a proportional increase in hardness. For instance, the progression from calcite to fluorite (from 3 to 4 on the Mohs scale) reflects an increase in hardness of approximately 25 percent; the progression from corundum to diamond, on the other hand (9 to 10 on the Mohs scale), reflects a hardness increase of more than 300 percent.
Answer:
The answer is below
Explanation:
To know the educational method or system of other countries, particularly those of the developed nations across the globe, and then adopt certain characteristics that can be infused into the Nigerian educational system for substantial development of education in Nigeria.
With the inclusion of Comparative Education in Nigeria Tertiary institution, graduates of Nigeria, particularly of those educational backgrounds, can employ the knowledge in their career and policy decision making on education if given the opportunity.
Mostly all the the brass intruments and the piano
I think it is fungi and plants.