WORLD HISTORY

Detailed explanation-1: -In Central America and present-day Mexico, people raised beans, squash, and corn. People made tools from metal in the Bronze Age. During the Bronze Age, which lasted from 3000 B.C. until about 1000 B.C., people began to form civilizations.

Detailed explanation-2: -Western Asia and the Near East were the first regions to enter the Bronze Age, which began with the rise of the Mesopotamian civilization of Sumer in the mid-4th millennium BC.

Detailed explanation-3: -Populations began to rise after 3500 BCE, with further dips and rises occurring between 3000 and 2500 BC but varying in date between regions. Around this time is the Neolithic decline, when populations collapsed across most of Europe, possibly caused by climatic conditions, plague, or mass migration.

Detailed explanation-4: -What was the central aspect of the Neolithic Revolution? The change from hunting animals and gathering plants for food to producing food by systematic agriculture.