2) Find out the cause and effect used in lines 92-95 and write them down. "Instead, scientists think these balanced rocks were probably carved by water. As rivers cut gullies into the granite bedrock beneath the desert floor, water chews away the weaker types of rock, leaving only the stronger behind."

Choose the sentence that is not logically connected in the paragraph. (1) one final effect of radio and tv on the language must must be noted. (2) there is no doubt that these great media of information have cut down considerably the time that used to be devoted to reading. (3) radio and tv may enhance the spoken word. (4) they tend to lower comprehension levels.