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18. What are the main reasons that life expectancy has increased worldwide?
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18. What are the main reasons that life
expectancy has increased worldwide?

User Maarten Hilferink
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newer medicine to treat all different types of sicknesses/ diseases that the past could not treat is one main reason
User Dnhyde
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Answer:

What are the main reasons that life expectancy has increased worldwide? Life expectancy has increased because of better nutrition, healthcare, clean water, and safe sewage disposal. 20.

Step-by-step explanation:

User Jannis M
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