Pls answer fast i’m taking the test. i couldn’t find the answer anywhere.

Which is an example of a population?

Many organizations release indexes used to measure the development of the world's countries. as we learned in this lesson, these indexes measure many factors, from life expectancy to happiness. in your opinion, what are the three most important factors we can use to determine how developed a country might be? explain your answers in a few sentences.

Where is most of the fresh water on earth found a in the ocean b in glaciers and in ice caps c in rivers d in the soil