Which of the following joints are primarily synovial?

Explain why in any given geographical region, women tend to have lighter skins( by 3-4% on average) than men?

Which of these is most likely to happen if parallax measurements of star distances are taken after a gap of six months? the results would be accurate the results would be inconsistent the results would not be valid the results would not be repeated

Explain the source of radioactivity in uranium in earth’s crust by which it produces nuclear radiation