Hypothesize: Why would being able to make and control fire be useful?
Hypothesize/Recall : Why would a change in the climata make
animals go extinct?

1) Why would being able to make and control fire be

useful?

The control of fire by early humans was a turning point in the technological evolution of human beings. Fire provided a source of warmth and lighting, protection from predators (especially at night), a way to create more advanced hunting tools, and a method for cooking food.

2) Why would a change in the climata make

animals go extinct?

The hottest daily highs in summer are the key variable that explains whether a population will go extinct. Most species won't be able to "escape" to a cooler climate in order to avoid extinction. Many species were able to tolerate some increases in maximum temperatures, but only up to a point.

explanation:

kijkimk

demand is the need and oportunity to buy a given good or service.