The people of the OLD STONE AGE learned to build fires. This was helpful because they could . . .

This was helpful because they could keep warm and cook food.

Explanation:

brainiest please

the correct answer is option c. elenita versus "early puerto rican decor" is the best example, out of all the options, of a cultural conflict. a cultural conflict is defined as what happens when different cultures, that have different values and believes, clash. elenita not liking or accepting the puerto rican style of decoration, would represent that she does not identify herself with the puerto rican culture, therefore does not want to have decorations influenced by that culture.

d. the polar jet stream   lies between the polar easterlies and trade winds should be your answer