When early man was able to control and use fire it was an important development. Give me three sentences telling about early man cane to use fire and the benefits of fire

Fire was very important for early man.

Explanation:

Stone tools did exist before the beginning of controlled fire. But in Stone Age, man combined the two technologies. It was discovered that heating rocks around a fire brought out impurities, which made the rocks easier to cut into stone tools.

Fire became a source of warmth and protection. It was easier for man to stay in low temperatures and geographic expansion could be possible. There was improvement in hunting and there was a method to cook food. With these cultural advances man could expand geographically, there could be cultural innovations, diet and behavior could change.