Radar uses witch type of electromagnetic waves to detect objects and measure their distance and speed? A.) Infrared rays
B.) Microwaves
C.) X- Rays

Use the drop-down menus to answer each question. which runner finished the 100 m race in the least amount of time? which runner stopped running for a few seconds during the race? at what distance did anastasia overtake chloe in the race?

What is the indicator of the number of ions in solution? the amount of conductivity the amount of precipitate the amount of solute added

Who determined the nature of chemical bonds?