An experiment can show: OA. how changing a variable can affect behavior.
O B. how observations can be valid.
OC. wording bias.
OD. interviewer bias.

How can mental health issues have an impact on a person’s career?

Life expectancy in the united states is (76.4 for men and 81.1 for women). life expectancy is not the same as healthy life expectancy. healthy life expectancy is the number of years a person is expected to live in this number is obtained by subtracting years spent in poor health from overall life expectancy. the world health organization (who) calculates healthy life expectancy in 194 countries. the united states ranks twenty-ninth in the world using this measurement, with an average of of healthy life expectancy. singapore ranks number one (76 years), and japan is number two (75 years).

First to answer will be the brainliest i need the answer asap