The climax of "The Oasis: Africa" comes when Sheikh spots something in the distance and thinking it may be the raiders, the men get out their weapons and prepare to fight. How does the author's choice to use that information here impact the text

By using this information in the climax, the author creates a tone of anxiousness or danger created before, when the caravan does encounter the raiders, that contrasts with the sense of relief achieved when the characters find out is really an oasis they are looking.

The author modifies the text adding tension and a sense of danger where the fight will be necessary.

Explanation:

As you may already know, the climax of a plot is the most intense moment in history, where the main characters are entering the moment of facing their biggest challenges. In climax the characters are, in fact, facing a great conflict and for the reader to feel all the intensity of that moment, the authors are constantly changing the tone in which the text is being transmitted.

We can see this in the question that shows that during the climax of "The Oasis: Africa" Sheikh sees something distant and thinking that it may be the invaders, the men take up their weapons and prepare to fight. At that moment, the author modifies the text to pass a climate of tension and anxiety, showing that the danger and causing a sensation of increased adrenaline that indicates that the moment of struggle has arrived and that there is no more to escape.