Which of the following is NOT mentioned in the passage as a way in whi

A) For furniture
B) For fuel
C) For housing
D) For nourishment C) The young mans route was too indirect D) The young man chose difficult trails 222. (v17-108-31) Why did the young man become lost? A) He was not conscious of where he went B) He pinpointed his location on his map C) He did not switch to an easiertrail D) He listened to the old mans advice 223. (v17-108-32) Which of the following gave a hint of an eventual storm? A) The sudden strong winds B) The sparse clouds in the sky C) The weather getting colder D) The lightining flashing in the sky 224. (V17-110-33) Read the text. Then choose the correct answer for each question below (33-36). When we accept the evidence of our unaided eyes and describe the Sun as a yellow star, we have summed up the most important single fact about it-at this moment in time. It appears probable however, that sunlight will be the color we know for only a negligibly small part of the Suns history. Stars, like individuals, age and change. As we look out into space, We see around us stars at all stages of evolution. There are faint blood-red dwarfs so cool that their surface temperature is a mere 4,000 degrees Fahrenheit, there are searing ghosts blazing at 100,000 degrees Fahrenheit and almost too hot to be seen, for the great part of their radiation is in the invisible ultraviolet range. Obviously, the «daylight» produced by any star depends on its temperature; today (and for ages to come) our Sun is at about 10,000 degrees Fahrenheit, and this means that most of the Suns light is concentrated in the yellow band of the spectrum, falling slowly in intensity* toward both the longer and shorter light waves. That yellow «hump» will shift as the Sun evolves, and the light of day will change accordingly. It is natural to assume that as the Sun grows older, and uses up its hydrogen fuel-which it is now doing at the spanking rate of half a billion tons a second-it will become steadily colder and redder. What is the passage mainly about? A) Faint dwarf stars B) The evolutionary cycle of the Sun C) The Suns fuel problem D) The dangers of invisible radiation 225. (v17-110-34) What does the author say v is especially important about the Sun at the present time? A) It appears yellow B) It always remains the same C) It has a short history D) It is too cold 226. (v17-110-35) Why are very hot stars referred to as «ghosts»? A) They are short-lived B) They are mysterious C) They are frightening D) They are nearly invisible