Question

the life expectancy has been extended a lot of comparison to 20 to 30 years why​

Answer 1

Answer:

Human life expectancy has increased exponentially because of : More children survive during childhood and past the age of 5 thanks to vaccination, better nutrition, safer and cleaner living condition, and advance medical treatments.

Explanation:

mark brainliest if you can

Answer 2

Answer:

hello thank u so much for thanking my ans r u a buddhist