Why do you think death rates were so high?give two reasons

In 1900, the annual mortality rate was one in 42 Americans. ... 8556), co-authors David Cutler and Ellen Meara explore how we achieved such gains in health: that is, ... In the next two decades, life expectancy improvements were split relatively ... Infectious diseases were the leading cause of death in 1900, accounting for 32 ...

Explanation:

i believe you meant to say air rather than hair so the answer is below ")

the dead sea, the lowest place on earth at 430 metres (1,410 ft) below sea level, has a correspondingly high typical atmospheric pressure of 1065 hpa.