Is adaptors that convert to three pin-plus to two pin plu are safe to use?

How do you kill exposed nerves in the finger? What would happen if the north pole of a magnet is in the south pole of earth and the south pole of a magnet is in the north pole of earth? What nuclei will result if a U-235 nucleus after absorbing a neutron and becoming U-236 splits into two identical fragments? What are the photosensitive receptor cells that make vision in dim light possible are? Which igneous rocks would be formed by the fastest cooling of lava? Teleomeres are unnecessary in bacteria because the DNA is circular? What organelles makes ATP the energy currency of the cell? Why does DNA get transcribed? How hypophosphorous acid behaves as monobasic or dibasic or tribasic or tetrabasic? How much dust does a household accumulate in a year? What is a personal symbol? What is glomerulus hydrostatic pressure? What size romex for 5000 watt dryer? Countries that touch 90 degrees meridan of longitude? What is a name for a green liquid? What are pockets of radiation? Are hydrocarbons poisons? Which has a larger wavelength a slow moving photon or a fast moving golf ball? What happens if power rating of an appliance is exceeded? What do lines of longitude and latitude combine to make?