Make your own answer as to why it needs more fuel because it is very bad to only have a certain amount of fuel. Think up and make a story about have there should be reserves aboard the ship.
I wont type it for you because it will make it harder for you to retype and wont pass the plagiarism test but im confident you got this.
wheres the story??
Its called Cold Equations
its probably a test so i can't help you there
I think he has an idea more or less already
Is this a written assignment or exam?