Answer:
The correct answer is:
1. to stay warm in colder temperatures
2. to cook and prepare food
3. to scare wild animals
Explanation:
To stay warm in colder temperatures: during the days with colder temperatures they needed some source of heating, so they used fire to warm up and protect themselves from freezing.
Cooking and preparing food: while cooking food on the fire, Paleolithic hunter-gatherers were preventing some diseases that the consumption of raw food could cause.
To scare wild animals: in the Paleolithic era, wild animals were a serious threat for hunter-forager groups; they might take their food or attack their camps, so they used fire to scare them away and protect their communities.