Comparing and contrasting a boron
atom has two electrons in the first energy level
and three in the second energy level. compare
the relative energies of the electrons in these
two energy levels.

Which of the following natural processes is most likely to support the formation of an underwater sinkhole? a pollution buildup from deposited minerals b limestone cave collapsing due to changes in sea level c erosion of large amounts of sand moved by ocean waves d oxidation of rock formed by chemical weathering

Avolleyball player hit a ball with a mass of 0.25 kg. the average acceleration of the ball is 15.5 m/s². how much force did the volleyball player apply to the ball? 62.0 n 3.87 n 62.0 m/s² 3.87 m/s²

The plant food contains nh4)3po4 what tests would you run to verify the presence of the nh4 ion and the po4 ion