Why did scientists call different periods in the history of mankind in this way? 1. Stone Age. 2. Bronze Age. 3. The Iron Age.

1) All tools were made of stone
2) People learned to make an alloy from copper and tin, getting bronze
3) During this period, people began to use iron for the manufacture of tools, since they were more durable than bronze products



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.