Why is it necessary to measure HDI of the countries all over the world

HDI refers to HUMAN DEVELOPMENT INDEX

Explanation:

It is necessary to measure HDI of the countries to see economic development of the country. It value ranges from 0 to 1, the values closer to 0 show loe economic development and values closer to 1 shows high economic development.

an aneroid barometer is different from a mercury barometer in that it provides readings that increase as air pressure increases.

hope it : )

answer; mental health prevention programs;