12. the use of sunglasses as an aid to vision...

12. the use of sunglasses as an aid to vision is important. for the most part, the eye is a daytime instrument: it requires light to work properly. however, too much bright light and glare can create discomfort; as a result the eyes blink, squint, get tears, or have trouble seeing well. sunglasses help by keeping much of this bright light and glare from reaching the eyes.\nthe main purpose of sunglasses is to\n(a) hide the eyes.\n(b) screen out harmful rays of the sun.\n(c) remove the need for regular glasses.\n(d) protect the eyes from dirt.\n13. would you like to be good at a trade? would you like to know a skill that pays well? one sure way to skill, good pay, and regular work is to train on the job. this is called apprentice training. while it is not the only way to learn, apprentice training has good points. you can earn while you learn. you will know the skill “from the ground up,” and you can advance on the job.\napprentice training is described here by discussing\n(a) both sides.\n(b) the good side.\n(c) the bad side.\n(d) a specific trade.\n14. when you work at a job covered by social security, you and your employer contribute equal amounts. your portion of the tax is taken from your wages or paycheck before you receive it. this is called a deduction.\nwhich of these statements is true according to the passage?\n(a) total tax rate is retirement rate plus insurance rate.\n(b) insurance rates are higher than retirement rates.\n(c) money taken from your pay is called a deduction.\n(d) only your employer contributes to social security.\n15. nucleic acids are found in all living organisms, from viruses to humans. their name refers to their discovery in the nuclei of white blood cells and fish sperm by swiss physiologist johann miescher in 1869. however, it is now well established that nucleic acids occur outside the cell nucleus as well.\nnucleic acids are found\n(a) only in cells of humans.\n(b) only in viruses.\n(c) in all living cells.\n(d) only in white blood cells.

Answer

### 12. # Brief Explanations: The passage states that sunglasses help by keeping much of the bright light and glare from reaching the eyes, which implies screening out harmful rays. # Answer: B. screen out harmful rays of the sun. ### 13. # Brief Explanations: The passage only mentions the good points of apprentice - training like earning while learning and job - advancement, focusing on the good side. # Answer: B. the good side. ### 14. # Brief Explanations: The passage clearly states that money taken from your wages or paycheck before you receive it is called a deduction. # Answer: C. Money taken from your pay is called a deduction. ### 15. # Brief Explanations: The passage says nucleic acids are found in all living organisms, which means in all living cells. # Answer: C. in all living cells.