Huan made a chart to study for an exam about radio waves. Which headings best complete the chart? X: Phase Y: Pulse X: Pulse Y: Phase X: AM Y: FM X: FM Y: AM Mark this and return

Can you use radiation to generate electricity

Abar magnet cut in half will form a total ofpoles.a)fourb)eightc)two

Scientists follow specific processes in order to determine valid explanations and conclusions from observations. david observed strange lights in the sky above his home outside of roswell, new mexico. the only explanation that makes sense to him is that there are ufos in the area. what should david do next to verify his explanation?