Improvisation this practice focuses on sensing a partner while having a body dialogue

With i really need the correct answer!

Smallest intensity of a stimulus that you can detect 50 percent of the time is

The largest observatory complex in the world is on mauna kea, the tallest mountain on earth. what are some factors astronomers consider when selecting an observatory site? don’t forget practical ones. should astronomers, for example, consider building an observatory on denali (mount mckinley) or mount everest?