PLEASE HELP ASAPP!! What frequency of electromagnetic radiation will result in a photon with an energy of 7.11 x 10-20 ? (Remember that Planck's
constant, h, has a value of 6.63 x 10-34 )-sec)
A)
1.07 x 1014)
B)
1.36 x 10-15)
3.08 x 1013)
D)
4.95 x 1015;

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