FAUGEL’S RESEARCH SHOWED THAT BETA BLOCKERS GIVEN TO HIS SAMPLEA....

14. Faugel’s research showed that beta blockers given to his sampleA. increased scores the same as the national average.B. decreased scores.C. increased scores less than the national average.D. increased scores much more than the national average.Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correctanswer to each of the questions.Today I’d like to begin a discussion on the problem of the heating up the earth. First, we’ll touch on therelationship between fluorocarbons and the ozone layer. You probably remember that the ozone layer is theprotective shield around the earth. It is important to all life, because it filters out harmful ultraviolet lightfrom the sun. Ozone itself, a form of oxygen, is regularly made by the action of the sun in the upperatmosphere. It is also regularly destroyed by natural chemical processes.The problem now is that too much of the ozone layer is being destroyed. Scientists suspect that certainchemicals, such as fluorocarbons, are contributing to the depletion of the ozone layer. And how do we usefluorocarbons? The most common uses are in spray cans and cooling systems. The chemical pollution fromthese fluorocarbons can account for some of the ozone losses that have been reported. There are, however,new studies linking the sun itself to the depletion of the ozone layer. We’ll go into that new study more nexttime.