Answer to Question 1
D
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People who live to the age of 65 years can expect to live an average of 19.2 more years; among people who live to age 85 years, women will survive another 7 years and men 5.9 years.
Answer to Question 2
C
Dehydration may be a problem in older adults because the kidneys' ability to concentrate urine decreases with age. Older adults actually sweat less in hot weather than younger adults. Their lungs do not evaporate more water during respiration and water absorption from the gastrointes-tinal tract does not decrease (if it did, older adults would experience diarrhea).