Answer:
The Tiber
Explanation:
It is 252 miles (405 km) long. Twisting in a generally southerly direction through a series of scenic gorges and broad valleys, the Tiber flows through the city of Rome and enters the Tyrrhenian Sea of the Mediterranean near Ostia Antica. Its major tributaries are the Chiascio, Nestore, Paglia, Nera, and Aniene.
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<h2>Answer</h2><h3>This saying was a response to policies like the Sugar Act. Colonists were not allowed to vote for British leaders who made these policies.</h3><h2>Explanation</h2>
The Americans were forced to pay taxes to the British government without having any representative in the corridors of power of the British Parliament. This served as a constant reminder to the fact that the Americans were under a tyrannical rule by the Britishers and followed the basis of the revolution that followed in return.
Answer:
d
Explanation:
the labor force that is not employed is called the unemployment rate
Plastic is a word that originally meant “pliable and easily shaped.” It only recently became a name for a category of materials called polymers. The word polymer means “of many parts,” and polymers are made of long chains of molecules. Polymers abound in nature. Cellulose, the material that makes up the cell walls of plants, is a very common natural polymer.
Over the last century and a half humans have learned how to make synthetic polymers, sometimes using natural substances like cellulose, but more often using the plentiful carbon atoms provided by petroleum and other fossil fuels. Synthetic polymers are made up of long chains of atoms, arranged in repeating units, often much longer than those found in nature. It is the length of these chains, and the patterns in which they are arrayed, that make polymers strong, lightweight, and flexible. In other words, it’s what makes them so plastic.
These properties make synthetic polymers exceptionally useful, and since we learned how to create and manipulate them, polymers have become an essential part of our lives. Especially over the last 50 years plastics have saturated our world and changed the way that we live.
The First Synthetic Plastic
The first synthetic polymer was invented in 1869 by John Wesley Hyatt, who was inspired by a New York firm’s offer of $10,000 for anyone who could provide a substitute for ivory. The growing popularity of billiards had put a strain on the supply of natural ivory, obtained through the slaughter of wild elephants. By treating cellulose, derived from cotton fiber, with camphor, Hyatt discovered a plastic that could be crafted into a variety of shapes and made to imitate natural substances like tortoiseshell, horn, linen, and ivory.
This discovery was revolutionary. For the first time human manufacturing was not constrained by the limits of nature. Nature only supplied so much wood, metal, stone, bone, tusk, and horn. But now humans could create new materials. This development helped not only people but also the environment. Advertisements praised celluloid as the savior of the elephant and the tortoise. Plastics could protect the natural world from the destructive forces of human need.
The creation of new materials also helped free people from the social and economic constraints imposed by the scarcity of natural resources. Inexpensive celluloid made material wealth more widespread and obtainable.
The separation of the Christian church into western and Eastern was quite anticipated on the basis of these conflicts:
-Disagreements between churches. Churches could not find agreement either in rites, in politics or in culture.
-Disagreements in politics. The main problem of the conflict on the political ground was the antagonism between emperors of Byzantium and the Roman Paami.
-Disagreement in culture. The main problem in the cultural sphere was the difference between languages. So, in the east the main language was Greek, and in the West-Latin. In other words, to read each other's literature, people were looking for translations, otherwise,they were fond of different books.
