Answer:
Serendipity has been recently discovered in the Portage-du-Fort area, Pontiac Regional County Municipality, Quebec. Dark blue, often polysynthetic twinned on {011} and with no cleavage, serendipity crystals occur exclusively in a calc-silicate rock. Fine-grained cathedral serendipity, sometimes poikiloblastic, occurs with aluminous diopside. Less commonly, serendipity may form decussate masses in the same rock type. Serendipity is biaxial negative, with indices of refraction α 1.685(2), β 1.700(2), and γ 1.712(2); 2Vmeas. = 93.6(4)°, 2Vcalc. = 91°. Orientation matrix is X ^ c = +20.5°, Y ^ b = -42.6°, and Z ^ a = -24.6°. Dispersion is strong, r 蠐 v, and there is no pleochroism. Serendipity is triclinic, space group P1¯ with cell parameters refined from an X-ray powder-diffraction pattern: a 10.035(2), b 10.423(3), c 8.648 (2) Å, α 106.47(3)°, β 95.91(2)°, γ 124.46(2)°, V 674.3(2) Å3. The seven strongest lines of the X-ray powder diffraction pattern [d in Å(I)(hill)] are: 3.328(45)(230), 3.029 (96)(012, 021, 1 22), 2.854(96)(01¯3, 03¯1, 120), 2.689(29)(31¯1), 2.604(95)(030), 2.469(100)(2¯1¯3, 033), and 2.357(28)(22¯3, 23¯3). The crystal structure determination refined to R = 2.1% for 3877 unique reflections. The borosilicate structure, a member of the aenigmatite-rhenate group, is composed of layers parallel to (011). Layers of tetrahedral chains cross-linked by octahedral polyhedral alternate with layers of octahedral chains cross-linked by square antiprism polyhedral sheets. Tetrahedral and octahedral polyhedral are partially ordered and site assignments were determined. All cation sites are disordered to some degree.
Explanation:
Answer:
True
Explanation:
A Map is commonly refered to as a drawing. It shows the direct part of the earth surface from above. There are different types of map. There is the Physcial map that simply shows an individual the landforms and bodies of water in specific areas, Political Map which highlights varous features humans have created such as the boundaries between states, provinces e. t. c. Map helps us to find the shortest route between two places without getting lost.
Cartographers in their designs uses visual hierarchy to highlight( makes bigger) the more important parts of a map and the the ones with little/tiny importance are marked by creating a layering of information that is smaller for them.
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Students who comprehend the most from their reading are those who when a lot about words. Students know about word prefixes, suffixes, word roots, and multiple meanings of words. Knowledge expands their vocabulary which helps when they encounter new words during reading.
The rise of a merchant class foreshadow the rise of feudalism.
<h3>What is feudalism?</h3>
It should be noted that feudalism, was the combination of the legal, military, economic, and cultural customs that flourished in medieval Europe between the 9th and 15th centuries.
All of it started to alter with the development of the merchant class. While still ostensibly under the control of their primitive overlords, started to amass enough wealth and influence to require more freedom. Many medieval kings did not join them, but those that did tried to stifle and oppress the burgeoning prosperous shipper class.
Therefore, to whom did the shippers swing? Lord, of course! The monarchs saw this as an opportunity to regain control over their rogue vassals. As this trend continued, it elevated sovereignty to the form of unrestrained governance that emerged as the Middle Ages came to an end. Although it is a distortion, it nevertheless conveys the main idea.
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