Which of these was a feature of twentieth-century living that contributed to an increase in disease?
The golden age of British cinema occurred in the 1940s.
Tanned skin became fashionable among fair-skinned people, with tanning beds invented in the
1970s.
The modern Olympic Games were revived in 1896, televised internationally in 1956.
The number of smokers in Britain rose steadily.



Answer :

Final answer:

Public behavior changes and medical advancements were crucial in improving public health and reducing disease spread in the twentieth century.


Explanation:

Changes in public behavior and medical advancements played significant roles in increasing life expectancy in the twentieth century. Vaccinations, antibiotics such as penicillin, and improved hygiene practices all contributed to reducing the spread of diseases and improving public health.


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