He used fire for keeping off the dangerous animals of the forest.

Do you think we use fire to heat rocks here?

It looks like they did not know how to use fire yet.

They made their own small hearths, and learned to use fire.

Using breath and fire to create something you could hold in your hand.

At some point, humans began using fire for heat and cooking.

I'm sorry, but you need to keep your people from using fire for the time being.

If everyone knows of the danger, maybe it will be safe to use fire when you must.

Or if she died in the conflict, which was quite likely, would Carol then use fire?

When, how, and where managers should use fire as a management tool is a subject of debate.