What does life expectancy measure? the average income a population likely earns during employment
the average human development during a population’s lifetime
the average number of years that a population is likely to live
the average standard of living during a population’s lifetime

the average number of years that a population is likely to live

Explanation:

Life Expectancy is usually counted in order to find out a general idea on the standard of living in a country.

It's a measurement that can be examined to find out how the country is dealing with issues like : Medical care for it's citizens, service distribution among people with different income level, quality of their foods & water, the advancement in their medical knowledge, etc.

Typically, countries with higher GDP per capita will have higher expectancy compared to developing countries.

if you have ask any question and if you have got the answer reply for your position there will be option for making a brain least answer you need to click click there and they can get the points in brain list main thing is that you need to choose those answer which answer you are you think that it is to you

explanation:

allergens: overstimulate the nerve system

neurotics: attack nerve cells

mutagens: damage or otherwise alter dna sequence

generators: cause defects during growth and development  

carcinogens: cause unchecked cell growth

i hope you get the idea according to me these are the effects that happened.