Increases in life expectancy in the United States during the twentieth century were due primarily to

a. the control of childhood and infectious diseases.

b. the fitness boom.

c. increased use of vitamin supplements.

d. the defeat of chronic illness.

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Social Studies

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18 May, 10:44

Increases in life expectancy in the United States during the twentieth century were due primarily to

a. the control of childhood and infectious diseases.

b. the fitness boom.

c. increased use of vitamin supplements.

d. the defeat of chronic illness.

+1

Answers (2)

Know the Answer?

Drake Holloway · Answer 1

the correct answer is d

Abbie Gamble · Answer 2

Answer:A. the control of childhood and infectious diseases.

Explanation: Life expectancy began to rise due to better sanitation and education in the twentieth century

Increases in life expectancy in the United States during the twentieth century were due primarily toa. the control of childhood and infectious diseases.b. the fitness boom.c. increased use of vitamin supplements.d. the defeat of chronic illness.

Increases in life expectancy in the United States during the twentieth century were due primarily to

a. the control of childhood and infectious diseases.

b. the fitness boom.

c. increased use of vitamin supplements.

d. the defeat of chronic illness.