Precambrian time, period of time extending from about 4.6 billion years ago (the point at which Earth began to form) to the beginning of the Cambrian Period, 541 million years ago. Precambrian time encompasses the Archean and Proterozoic eons, which are formal geologic intervals that lasted from 4 billion to about 541 million years ago, and the Hadean Eon, which is an informal interval spanning from 4.6 billion to 4 billion years ago. The Precambrian represents more than 80 percent of the total geologic record.
Answer:
The goal of the conservatives at the Congress, led by Prince Klemens von Metternich of Austria, was to reestablish peace and stability in Europe. To accomplish this, a new balance of power had to be established.
Answer: Trade unions are organizations that represent the interests of workers.
Explanation:
Trade unions are an integral part of many industries and corporations around the world. Their task is to represent the interests of the workers. In the United States, the existence of a trade union was established by law in 1935. The unions negotiate with employers about wages, working conditions, benefits and work organization. The strongest unions in the world today are parts of the public sector, such as the police, teachers, civil servants and the like.
